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Finding the Fourth Proportional to 492,885.28, 680,191.52 and 277,983.20

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Solution

The fourth proportional to 492,885.28, 680,191.52 and 277,983.20 is: 383,622.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,885.28 : 680,191.52 = 277,983.20 : x
  2. Step 2: Convert to fraction form
    492,885.28/680,191.52 = 277,983.20/x
  3. Step 3: Cross multiply
    492,885.28x = 680,191.52 × 277,983.20
  4. Step 4: Simplify right side
    492,885.28x = 189,081,815,342.46
  5. Step 5: Solve for x
    x = 189,081,815,342.46/492,885.28
  6. Step 6: Final answer
    x = 383,622.36

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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.