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Finding the Fourth Proportional to 672,191.32, 927,613.12 and 366,271.78

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Solution

The fourth proportional to 672,191.32, 927,613.12 and 366,271.78 is: 505,449.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,191.32 : 927,613.12 = 366,271.78 : x
  2. Step 2: Convert to fraction form
    672,191.32/927,613.12 = 366,271.78/x
  3. Step 3: Cross multiply
    672,191.32x = 927,613.12 × 366,271.78
  4. Step 4: Simplify right side
    672,191.32x = 339,758,508,613.75
  5. Step 5: Solve for x
    x = 339,758,508,613.75/672,191.32
  6. Step 6: Final answer
    x = 505,449.12

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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.