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Finding the Fourth Proportional to 491,160.47, 677,800.48 and 276,300.70

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Solution

The fourth proportional to 491,160.47, 677,800.48 and 276,300.70 is: 381,294.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,160.47 : 677,800.48 = 276,300.70 : x
  2. Step 2: Convert to fraction form
    491,160.47/677,800.48 = 276,300.70/x
  3. Step 3: Cross multiply
    491,160.47x = 677,800.48 × 276,300.70
  4. Step 4: Simplify right side
    491,160.47x = 187,276,747,084.34
  5. Step 5: Solve for x
    x = 187,276,747,084.34/491,160.47
  6. Step 6: Final answer
    x = 381,294.42

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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.