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Finding the Fourth Proportional to 574,262.60, 861,005.10 and 304,435.40

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Solution

The fourth proportional to 574,262.60, 861,005.10 and 304,435.40 is: 456,446.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,262.60 : 861,005.10 = 304,435.40 : x
  2. Step 2: Convert to fraction form
    574,262.60/861,005.10 = 304,435.40/x
  3. Step 3: Cross multiply
    574,262.60x = 861,005.10 × 304,435.40
  4. Step 4: Simplify right side
    574,262.60x = 262,120,432,020.54
  5. Step 5: Solve for x
    x = 262,120,432,020.54/574,262.60
  6. Step 6: Final answer
    x = 456,446.98

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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.