Home / 507,130.47-698,428.17-391,984.92

Finding the Fourth Proportional to 507,130.47, 698,428.17 and 391,984.92

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Solution

The fourth proportional to 507,130.47, 698,428.17 and 391,984.92 is: 539,847.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,130.47 : 698,428.17 = 391,984.92 : x
  2. Step 2: Convert to fraction form
    507,130.47/698,428.17 = 391,984.92/x
  3. Step 3: Cross multiply
    507,130.47x = 698,428.17 × 391,984.92
  4. Step 4: Simplify right side
    507,130.47x = 273,773,310,343.20
  5. Step 5: Solve for x
    x = 273,773,310,343.20/507,130.47
  6. Step 6: Final answer
    x = 539,847.88

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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.