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Finding the Fourth Proportional to 864,387.57, 1,296,774 and 265,400.94

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Solution

The fourth proportional to 864,387.57, 1,296,774 and 265,400.94 is: 398,160.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,387.57 : 1,296,774 = 265,400.94 : x
  2. Step 2: Convert to fraction form
    864,387.57/1,296,774 = 265,400.94/x
  3. Step 3: Cross multiply
    864,387.57x = 1,296,774 × 265,400.94
  4. Step 4: Simplify right side
    864,387.57x = 344,165,038,567.56
  5. Step 5: Solve for x
    x = 344,165,038,567.56/864,387.57
  6. Step 6: Final answer
    x = 398,160.56

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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.