Home / 1,215,872.16-1,822,230.81-495,375.90

Finding the Fourth Proportional to 1,215,872.16, 1,822,230.81 and 495,375.90

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Solution

The fourth proportional to 1,215,872.16, 1,822,230.81 and 495,375.90 is: 742,421.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,872.16 : 1,822,230.81 = 495,375.90 : x
  2. Step 2: Convert to fraction form
    1,215,872.16/1,822,230.81 = 495,375.90/x
  3. Step 3: Cross multiply
    1,215,872.16x = 1,822,230.81 × 495,375.90
  4. Step 4: Simplify right side
    1,215,872.16x = 902,689,227,511.48
  5. Step 5: Solve for x
    x = 902,689,227,511.48/1,215,872.16
  6. Step 6: Final answer
    x = 742,421.17

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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.