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Finding the Fourth Proportional to 495,963.76, 743,665.47 and 453,645.28

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Solution

The fourth proportional to 495,963.76, 743,665.47 and 453,645.28 is: 680,211.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,963.76 : 743,665.47 = 453,645.28 : x
  2. Step 2: Convert to fraction form
    495,963.76/743,665.47 = 453,645.28/x
  3. Step 3: Cross multiply
    495,963.76x = 743,665.47 × 453,645.28
  4. Step 4: Simplify right side
    495,963.76x = 337,360,330,364.48
  5. Step 5: Solve for x
    x = 337,360,330,364.48/495,963.76
  6. Step 6: Final answer
    x = 680,211.66

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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.