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Finding the Fourth Proportional to 502,404.60, 753,606.90 and 407,926.20

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Solution

The fourth proportional to 502,404.60, 753,606.90 and 407,926.20 is: 611,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,404.60 : 753,606.90 = 407,926.20 : x
  2. Step 2: Convert to fraction form
    502,404.60/753,606.90 = 407,926.20/x
  3. Step 3: Cross multiply
    502,404.60x = 753,606.90 × 407,926.20
  4. Step 4: Simplify right side
    502,404.60x = 307,415,999,010.78
  5. Step 5: Solve for x
    x = 307,415,999,010.78/502,404.60
  6. Step 6: Final answer
    x = 611,889.30

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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.