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Finding the Fourth Proportional to 658,029.32, 908,080.76 and 356,223.32

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Solution

The fourth proportional to 658,029.32, 908,080.76 and 356,223.32 is: 491,588.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,029.32 : 908,080.76 = 356,223.32 : x
  2. Step 2: Convert to fraction form
    658,029.32/908,080.76 = 356,223.32/x
  3. Step 3: Cross multiply
    658,029.32x = 908,080.76 × 356,223.32
  4. Step 4: Simplify right side
    658,029.32x = 323,479,536,833.80
  5. Step 5: Solve for x
    x = 323,479,536,833.80/658,029.32
  6. Step 6: Final answer
    x = 491,588.34

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Similar ratio
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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.