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Finding the Fourth Proportional to 502,500.95, 693,451.32 and 276,146.45

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Solution

The fourth proportional to 502,500.95, 693,451.32 and 276,146.45 is: 381,082.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,500.95 : 693,451.32 = 276,146.45 : x
  2. Step 2: Convert to fraction form
    502,500.95/693,451.32 = 276,146.45/x
  3. Step 3: Cross multiply
    502,500.95x = 693,451.32 × 276,146.45
  4. Step 4: Simplify right side
    502,500.95x = 191,494,120,265.81
  5. Step 5: Solve for x
    x = 191,494,120,265.81/502,500.95
  6. Step 6: Final answer
    x = 381,082.11

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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.