Home / 987,553.80-1,481,330.70-356,488.20

Finding the Fourth Proportional to 987,553.80, 1,481,330.70 and 356,488.20

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Solution

The fourth proportional to 987,553.80, 1,481,330.70 and 356,488.20 is: 534,732.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,553.80 : 1,481,330.70 = 356,488.20 : x
  2. Step 2: Convert to fraction form
    987,553.80/1,481,330.70 = 356,488.20/x
  3. Step 3: Cross multiply
    987,553.80x = 1,481,330.70 × 356,488.20
  4. Step 4: Simplify right side
    987,553.80x = 528,076,914,847.74
  5. Step 5: Solve for x
    x = 528,076,914,847.74/987,553.80
  6. Step 6: Final answer
    x = 534,732.30

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Similar ratio
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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.