Home / 987,208.80-1,480,813.19-239,254.80

Finding the Fourth Proportional to 987,208.80, 1,480,813.19 and 239,254.80

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Solution

The fourth proportional to 987,208.80, 1,480,813.19 and 239,254.80 is: 358,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,208.80 : 1,480,813.19 = 239,254.80 : x
  2. Step 2: Convert to fraction form
    987,208.80/1,480,813.19 = 239,254.80/x
  3. Step 3: Cross multiply
    987,208.80x = 1,480,813.19 × 239,254.80
  4. Step 4: Simplify right side
    987,208.80x = 354,291,663,610.81
  5. Step 5: Solve for x
    x = 354,291,663,610.81/987,208.80
  6. Step 6: Final answer
    x = 358,882.20

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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.