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Finding the Fourth Proportional to 495,504.92, 683,809.44 and 280,641.80

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Solution

The fourth proportional to 495,504.92, 683,809.44 and 280,641.80 is: 387,292.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,504.92 : 683,809.44 = 280,641.80 : x
  2. Step 2: Convert to fraction form
    495,504.92/683,809.44 = 280,641.80/x
  3. Step 3: Cross multiply
    495,504.92x = 683,809.44 × 280,641.80
  4. Step 4: Simplify right side
    495,504.92x = 191,905,512,098.59
  5. Step 5: Solve for x
    x = 191,905,512,098.59/495,504.92
  6. Step 6: Final answer
    x = 387,292.85

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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.