Home / 657,007.20-987,584.40-607,240.80

Finding the Fourth Proportional to 657,007.20, 987,584.40 and 607,240.80

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Solution

The fourth proportional to 657,007.20, 987,584.40 and 607,240.80 is: 912,777.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,007.20 : 987,584.40 = 607,240.80 : x
  2. Step 2: Convert to fraction form
    657,007.20/987,584.40 = 607,240.80/x
  3. Step 3: Cross multiply
    657,007.20x = 987,584.40 × 607,240.80
  4. Step 4: Simplify right side
    657,007.20x = 599,701,541,123.52
  5. Step 5: Solve for x
    x = 599,701,541,123.52/657,007.20
  6. Step 6: Final answer
    x = 912,777.73

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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.