Home / 761,121.78-1,050,349.35-416,950.20

Finding the Fourth Proportional to 761,121.78, 1,050,349.35 and 416,950.20

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Solution

The fourth proportional to 761,121.78, 1,050,349.35 and 416,950.20 is: 575,391.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,121.78 : 1,050,349.35 = 416,950.20 : x
  2. Step 2: Convert to fraction form
    761,121.78/1,050,349.35 = 416,950.20/x
  3. Step 3: Cross multiply
    761,121.78x = 1,050,349.35 × 416,950.20
  4. Step 4: Simplify right side
    761,121.78x = 437,943,371,552.37
  5. Step 5: Solve for x
    x = 437,943,371,552.37/761,121.78
  6. Step 6: Final answer
    x = 575,391.98

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Double scale
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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.