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Finding the Fourth Proportional to 502,413.68, 693,330.72 and 276,073.76

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Solution

The fourth proportional to 502,413.68, 693,330.72 and 276,073.76 is: 380,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,413.68 : 693,330.72 = 276,073.76 : x
  2. Step 2: Convert to fraction form
    502,413.68/693,330.72 = 276,073.76/x
  3. Step 3: Cross multiply
    502,413.68x = 693,330.72 × 276,073.76
  4. Step 4: Simplify right side
    502,413.68x = 191,410,418,793.91
  5. Step 5: Solve for x
    x = 191,410,418,793.91/502,413.68
  6. Step 6: Final answer
    x = 380,981.70

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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.