Home / 858,502.46-1,287,935.84-326,011.70

Finding the Fourth Proportional to 858,502.46, 1,287,935.84 and 326,011.70

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Solution

The fourth proportional to 858,502.46, 1,287,935.84 and 326,011.70 is: 489,086.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,502.46 : 1,287,935.84 = 326,011.70 : x
  2. Step 2: Convert to fraction form
    858,502.46/1,287,935.84 = 326,011.70/x
  3. Step 3: Cross multiply
    858,502.46x = 1,287,935.84 × 326,011.70
  4. Step 4: Simplify right side
    858,502.46x = 419,882,156,724.20
  5. Step 5: Solve for x
    x = 419,882,156,724.20/858,502.46
  6. Step 6: Final answer
    x = 489,086.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.