Home / 987,172.50-1,480,758.96-356,086.26

Finding the Fourth Proportional to 987,172.50, 1,480,758.96 and 356,086.26

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Solution

The fourth proportional to 987,172.50, 1,480,758.96 and 356,086.26 is: 534,129.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,172.50 : 1,480,758.96 = 356,086.26 : x
  2. Step 2: Convert to fraction form
    987,172.50/1,480,758.96 = 356,086.26/x
  3. Step 3: Cross multiply
    987,172.50x = 1,480,758.96 × 356,086.26
  4. Step 4: Simplify right side
    987,172.50x = 527,277,920,027.89
  5. Step 5: Solve for x
    x = 527,277,920,027.89/987,172.50
  6. Step 6: Final answer
    x = 534,129.47

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Double scale
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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.