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Finding the Fourth Proportional to 658,008.90, 908,055.18 and 356,202.90

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Solution

The fourth proportional to 658,008.90, 908,055.18 and 356,202.90 is: 491,561.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,008.90 : 908,055.18 = 356,202.90 : x
  2. Step 2: Convert to fraction form
    658,008.90/908,055.18 = 356,202.90/x
  3. Step 3: Cross multiply
    658,008.90x = 908,055.18 × 356,202.90
  4. Step 4: Simplify right side
    658,008.90x = 323,451,888,476.02
  5. Step 5: Solve for x
    x = 323,451,888,476.02/658,008.90
  6. Step 6: Final answer
    x = 491,561.57

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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.