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Finding the Fourth Proportional to 495,597.48, 683,938.54 and 280,737.48

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Solution

The fourth proportional to 495,597.48, 683,938.54 and 280,737.48 is: 387,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,597.48 : 683,938.54 = 280,737.48 : x
  2. Step 2: Convert to fraction form
    495,597.48/683,938.54 = 280,737.48/x
  3. Step 3: Cross multiply
    495,597.48x = 683,938.54 × 280,737.48
  4. Step 4: Simplify right side
    495,597.48x = 192,007,182,194.48
  5. Step 5: Solve for x
    x = 192,007,182,194.48/495,597.48
  6. Step 6: Final answer
    x = 387,425.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.