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Finding the Fourth Proportional to 672,422.06, 927,942.78 and 382,034.12

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Solution

The fourth proportional to 672,422.06, 927,942.78 and 382,034.12 is: 527,207.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,422.06 : 927,942.78 = 382,034.12 : x
  2. Step 2: Convert to fraction form
    672,422.06/927,942.78 = 382,034.12/x
  3. Step 3: Cross multiply
    672,422.06x = 927,942.78 × 382,034.12
  4. Step 4: Simplify right side
    672,422.06x = 354,505,803,367.65
  5. Step 5: Solve for x
    x = 354,505,803,367.65/672,422.06
  6. Step 6: Final answer
    x = 527,207.28

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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.