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Finding the Fourth Proportional to 650,925.90, 976,243.05 and 427,851.90

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Solution

The fourth proportional to 650,925.90, 976,243.05 and 427,851.90 is: 641,682.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,925.90 : 976,243.05 = 427,851.90 : x
  2. Step 2: Convert to fraction form
    650,925.90/976,243.05 = 427,851.90/x
  3. Step 3: Cross multiply
    650,925.90x = 976,243.05 × 427,851.90
  4. Step 4: Simplify right side
    650,925.90x = 417,687,443,804.30
  5. Step 5: Solve for x
    x = 417,687,443,804.30/650,925.90
  6. Step 6: Final answer
    x = 641,682.02

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.