Home / 1,398,520.25-2,098,901.38-724,794.17

Finding the Fourth Proportional to 1,398,520.25, 2,098,901.38 and 724,794.17

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Solution

The fourth proportional to 1,398,520.25, 2,098,901.38 and 724,794.17 is: 1,087,772.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,520.25 : 2,098,901.38 = 724,794.17 : x
  2. Step 2: Convert to fraction form
    1,398,520.25/2,098,901.38 = 724,794.17/x
  3. Step 3: Cross multiply
    1,398,520.25x = 2,098,901.38 × 724,794.17
  4. Step 4: Simplify right side
    1,398,520.25x = 1,521,271,483,628.95
  5. Step 5: Solve for x
    x = 1,521,271,483,628.95/1,398,520.25
  6. Step 6: Final answer
    x = 1,087,772.22

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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.