Home / 987,287.20-1,480,930.78-239,333.20

Finding the Fourth Proportional to 987,287.20, 1,480,930.78 and 239,333.20

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Solution

The fourth proportional to 987,287.20, 1,480,930.78 and 239,333.20 is: 358,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,287.20 : 1,480,930.78 = 239,333.20 : x
  2. Step 2: Convert to fraction form
    987,287.20/1,480,930.78 = 239,333.20/x
  3. Step 3: Cross multiply
    987,287.20x = 1,480,930.78 × 239,333.20
  4. Step 4: Simplify right side
    987,287.20x = 354,435,902,555.90
  5. Step 5: Solve for x
    x = 354,435,902,555.90/987,287.20
  6. Step 6: Final answer
    x = 358,999.80

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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.