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Finding the Fourth Proportional to 658,258.28, 908,391.24 and 356,452.28

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Solution

The fourth proportional to 658,258.28, 908,391.24 and 356,452.28 is: 491,901.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,258.28 : 908,391.24 = 356,452.28 : x
  2. Step 2: Convert to fraction form
    658,258.28/908,391.24 = 356,452.28/x
  3. Step 3: Cross multiply
    658,258.28x = 908,391.24 × 356,452.28
  4. Step 4: Simplify right side
    658,258.28x = 323,798,128,630.03
  5. Step 5: Solve for x
    x = 323,798,128,630.03/658,258.28
  6. Step 6: Final answer
    x = 491,901.34

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Double scale
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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.