Home / 510,747.40-766,121.10-472,365.55

Finding the Fourth Proportional to 510,747.40, 766,121.10 and 472,365.55

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Solution

The fourth proportional to 510,747.40, 766,121.10 and 472,365.55 is: 708,548.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,747.40 : 766,121.10 = 472,365.55 : x
  2. Step 2: Convert to fraction form
    510,747.40/766,121.10 = 472,365.55/x
  3. Step 3: Cross multiply
    510,747.40x = 766,121.10 × 472,365.55
  4. Step 4: Simplify right side
    510,747.40x = 361,889,214,768.11
  5. Step 5: Solve for x
    x = 361,889,214,768.11/510,747.40
  6. Step 6: Final answer
    x = 708,548.33

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.