Home / 987,287.13-1,480,930.69-239,333.13

Finding the Fourth Proportional to 987,287.13, 1,480,930.69 and 239,333.13

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Solution

The fourth proportional to 987,287.13, 1,480,930.69 and 239,333.13 is: 358,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,287.13 : 1,480,930.69 = 239,333.13 : x
  2. Step 2: Convert to fraction form
    987,287.13/1,480,930.69 = 239,333.13/x
  3. Step 3: Cross multiply
    987,287.13x = 1,480,930.69 × 239,333.13
  4. Step 4: Simplify right side
    987,287.13x = 354,435,777,350.76
  5. Step 5: Solve for x
    x = 354,435,777,350.76/987,287.13
  6. Step 6: Final answer
    x = 358,999.69

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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.