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Finding the Fourth Proportional to 638,034.43, 880,549.56 and 476,609.22

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Solution

The fourth proportional to 638,034.43, 880,549.56 and 476,609.22 is: 657,767.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,034.43 : 880,549.56 = 476,609.22 : x
  2. Step 2: Convert to fraction form
    638,034.43/880,549.56 = 476,609.22/x
  3. Step 3: Cross multiply
    638,034.43x = 880,549.56 × 476,609.22
  4. Step 4: Simplify right side
    638,034.43x = 419,678,040,099.03
  5. Step 5: Solve for x
    x = 419,678,040,099.03/638,034.43
  6. Step 6: Final answer
    x = 657,767.08

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Double scale
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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.