Home / 674,869.32-1,011,799.68-408,565.68

Finding the Fourth Proportional to 674,869.32, 1,011,799.68 and 408,565.68

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Solution

The fourth proportional to 674,869.32, 1,011,799.68 and 408,565.68 is: 612,543.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,869.32 : 1,011,799.68 = 408,565.68 : x
  2. Step 2: Convert to fraction form
    674,869.32/1,011,799.68 = 408,565.68/x
  3. Step 3: Cross multiply
    674,869.32x = 1,011,799.68 × 408,565.68
  4. Step 4: Simplify right side
    674,869.32x = 413,386,624,282.98
  5. Step 5: Solve for x
    x = 413,386,624,282.98/674,869.32
  6. Step 6: Final answer
    x = 612,543.22

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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.