Home / 747,870-1,121,875.44-579,578.76

Finding the Fourth Proportional to 747,870, 1,121,875.44 and 579,578.76

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Solution

The fourth proportional to 747,870, 1,121,875.44 and 579,578.76 is: 869,422.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,870 : 1,121,875.44 = 579,578.76 : x
  2. Step 2: Convert to fraction form
    747,870/1,121,875.44 = 579,578.76/x
  3. Step 3: Cross multiply
    747,870x = 1,121,875.44 × 579,578.76
  4. Step 4: Simplify right side
    747,870x = 650,215,176,389.65
  5. Step 5: Solve for x
    x = 650,215,176,389.65/747,870
  6. Step 6: Final answer
    x = 869,422.73

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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.