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Finding the Fourth Proportional to 578,508.52, 867,430.54 and 308,304

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Solution

The fourth proportional to 578,508.52, 867,430.54 and 308,304 is: 462,278.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,508.52 : 867,430.54 = 308,304 : x
  2. Step 2: Convert to fraction form
    578,508.52/867,430.54 = 308,304/x
  3. Step 3: Cross multiply
    578,508.52x = 867,430.54 × 308,304
  4. Step 4: Simplify right side
    578,508.52x = 267,432,305,204.16
  5. Step 5: Solve for x
    x = 267,432,305,204.16/578,508.52
  6. Step 6: Final answer
    x = 462,278.94

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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.