Home / 761,140.16-1,050,374.76-421,601.12

Finding the Fourth Proportional to 761,140.16, 1,050,374.76 and 421,601.12

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Solution

The fourth proportional to 761,140.16, 1,050,374.76 and 421,601.12 is: 581,810.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,140.16 : 1,050,374.76 = 421,601.12 : x
  2. Step 2: Convert to fraction form
    761,140.16/1,050,374.76 = 421,601.12/x
  3. Step 3: Cross multiply
    761,140.16x = 1,050,374.76 × 421,601.12
  4. Step 4: Simplify right side
    761,140.16x = 442,839,175,235.73
  5. Step 5: Solve for x
    x = 442,839,175,235.73/761,140.16
  6. Step 6: Final answer
    x = 581,810.29

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Double scale
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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.