Home / 761,341.14-1,050,175.13-489,762.72

Finding the Fourth Proportional to 761,341.14, 1,050,175.13 and 489,762.72

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Solution

The fourth proportional to 761,341.14, 1,050,175.13 and 489,762.72 is: 675,566.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,341.14 : 1,050,175.13 = 489,762.72 : x
  2. Step 2: Convert to fraction form
    761,341.14/1,050,175.13 = 489,762.72/x
  3. Step 3: Cross multiply
    761,341.14x = 1,050,175.13 × 489,762.72
  4. Step 4: Simplify right side
    761,341.14x = 514,336,625,696.34
  5. Step 5: Solve for x
    x = 514,336,625,696.34/761,341.14
  6. Step 6: Final answer
    x = 675,566.57

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Half scale
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Double scale
Find fourth proportional to 761,342.14, 1,050,176.50 and 489,763.72
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.