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Finding the Fourth Proportional to 498,480.57, 688,476.78 and 363,119.85

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Solution

The fourth proportional to 498,480.57, 688,476.78 and 363,119.85 is: 501,523.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,480.57 : 688,476.78 = 363,119.85 : x
  2. Step 2: Convert to fraction form
    498,480.57/688,476.78 = 363,119.85/x
  3. Step 3: Cross multiply
    498,480.57x = 688,476.78 × 363,119.85
  4. Step 4: Simplify right side
    498,480.57x = 249,999,585,082.08
  5. Step 5: Solve for x
    x = 249,999,585,082.08/498,480.57
  6. Step 6: Final answer
    x = 501,523.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.