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Finding the Fourth Proportional to 658,045.32, 908,102.85 and 356,239.32

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Solution

The fourth proportional to 658,045.32, 908,102.85 and 356,239.32 is: 491,610.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,045.32 : 908,102.85 = 356,239.32 : x
  2. Step 2: Convert to fraction form
    658,045.32/908,102.85 = 356,239.32/x
  3. Step 3: Cross multiply
    658,045.32x = 908,102.85 × 356,239.32
  4. Step 4: Simplify right side
    658,045.32x = 323,501,941,774.06
  5. Step 5: Solve for x
    x = 323,501,941,774.06/658,045.32
  6. Step 6: Final answer
    x = 491,610.43

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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.