Home / 992,355.87-1,487,154.78-518,095.20

Finding the Fourth Proportional to 992,355.87, 1,487,154.78 and 518,095.20

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Solution

The fourth proportional to 992,355.87, 1,487,154.78 and 518,095.20 is: 776,422.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,355.87 : 1,487,154.78 = 518,095.20 : x
  2. Step 2: Convert to fraction form
    992,355.87/1,487,154.78 = 518,095.20/x
  3. Step 3: Cross multiply
    992,355.87x = 1,487,154.78 × 518,095.20
  4. Step 4: Simplify right side
    992,355.87x = 770,487,753,175.06
  5. Step 5: Solve for x
    x = 770,487,753,175.06/992,355.87
  6. Step 6: Final answer
    x = 776,422.83

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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.