Home / 987,234.39-1,480,851.63-239,280.39

Finding the Fourth Proportional to 987,234.39, 1,480,851.63 and 239,280.39

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Solution

The fourth proportional to 987,234.39, 1,480,851.63 and 239,280.39 is: 358,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,234.39 : 1,480,851.63 = 239,280.39 : x
  2. Step 2: Convert to fraction form
    987,234.39/1,480,851.63 = 239,280.39/x
  3. Step 3: Cross multiply
    987,234.39x = 1,480,851.63 × 239,280.39
  4. Step 4: Simplify right side
    987,234.39x = 354,338,755,558.54
  5. Step 5: Solve for x
    x = 354,338,755,558.54/987,234.39
  6. Step 6: Final answer
    x = 358,920.60

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Double scale
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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.