Home / 1,521,162.80-2,098,545.56-917,215.28

Finding the Fourth Proportional to 1,521,162.80, 2,098,545.56 and 917,215.28

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Solution

The fourth proportional to 1,521,162.80, 2,098,545.56 and 917,215.28 is: 1,265,359.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,162.80 : 2,098,545.56 = 917,215.28 : x
  2. Step 2: Convert to fraction form
    1,521,162.80/2,098,545.56 = 917,215.28/x
  3. Step 3: Cross multiply
    1,521,162.80x = 2,098,545.56 × 917,215.28
  4. Step 4: Simplify right side
    1,521,162.80x = 1,924,818,053,408.16
  5. Step 5: Solve for x
    x = 1,924,818,053,408.16/1,521,162.80
  6. Step 6: Final answer
    x = 1,265,359.67

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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.