Home / 987,195.78-1,480,793.72-239,241.78

Finding the Fourth Proportional to 987,195.78, 1,480,793.72 and 239,241.78

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Solution

The fourth proportional to 987,195.78, 1,480,793.72 and 239,241.78 is: 358,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,195.78 : 1,480,793.72 = 239,241.78 : x
  2. Step 2: Convert to fraction form
    987,195.78/1,480,793.72 = 239,241.78/x
  3. Step 3: Cross multiply
    987,195.78x = 1,480,793.72 × 239,241.78
  4. Step 4: Simplify right side
    987,195.78x = 354,267,724,189.41
  5. Step 5: Solve for x
    x = 354,267,724,189.41/987,195.78
  6. Step 6: Final answer
    x = 358,862.68

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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.