Home / 987,694.61-1,363,018.59-534,985.61

Finding the Fourth Proportional to 987,694.61, 1,363,018.59 and 534,985.61

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Solution

The fourth proportional to 987,694.61, 1,363,018.59 and 534,985.61 is: 738,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,694.61 : 1,363,018.59 = 534,985.61 : x
  2. Step 2: Convert to fraction form
    987,694.61/1,363,018.59 = 534,985.61/x
  3. Step 3: Cross multiply
    987,694.61x = 1,363,018.59 × 534,985.61
  4. Step 4: Simplify right side
    987,694.61x = 729,195,324,997.40
  5. Step 5: Solve for x
    x = 729,195,324,997.40/987,694.61
  6. Step 6: Final answer
    x = 738,280.15

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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.