Home / 1,521,162.30-2,098,544.87-917,214.78

Finding the Fourth Proportional to 1,521,162.30, 2,098,544.87 and 917,214.78

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Solution

The fourth proportional to 1,521,162.30, 2,098,544.87 and 917,214.78 is: 1,265,358.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,162.30 : 2,098,544.87 = 917,214.78 : x
  2. Step 2: Convert to fraction form
    1,521,162.30/2,098,544.87 = 917,214.78/x
  3. Step 3: Cross multiply
    1,521,162.30x = 2,098,544.87 × 917,214.78
  4. Step 4: Simplify right side
    1,521,162.30x = 1,924,816,371,257.18
  5. Step 5: Solve for x
    x = 1,924,816,371,257.18/1,521,162.30
  6. Step 6: Final answer
    x = 1,265,358.98

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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.