Home / 657,027.20-987,614.40-607,260.80

Finding the Fourth Proportional to 657,027.20, 987,614.40 and 607,260.80

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Solution

The fourth proportional to 657,027.20, 987,614.40 and 607,260.80 is: 912,807.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,027.20 : 987,614.40 = 607,260.80 : x
  2. Step 2: Convert to fraction form
    657,027.20/987,614.40 = 607,260.80/x
  3. Step 3: Cross multiply
    657,027.20x = 987,614.40 × 607,260.80
  4. Step 4: Simplify right side
    657,027.20x = 599,739,510,635.52
  5. Step 5: Solve for x
    x = 599,739,510,635.52/657,027.20
  6. Step 6: Final answer
    x = 912,807.74

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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.