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Finding the Fourth Proportional to 502,818.16, 693,863.40 and 276,419.92

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Solution

The fourth proportional to 502,818.16, 693,863.40 and 276,419.92 is: 381,445.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,818.16 : 693,863.40 = 276,419.92 : x
  2. Step 2: Convert to fraction form
    502,818.16/693,863.40 = 276,419.92/x
  3. Step 3: Cross multiply
    502,818.16x = 693,863.40 × 276,419.92
  4. Step 4: Simplify right side
    502,818.16x = 191,797,665,518.93
  5. Step 5: Solve for x
    x = 191,797,665,518.93/502,818.16
  6. Step 6: Final answer
    x = 381,445.38

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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.