Home / 1,454,490.38-2,180,721.86-644,434.50

Finding the Fourth Proportional to 1,454,490.38, 2,180,721.86 and 644,434.50

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Solution

The fourth proportional to 1,454,490.38, 2,180,721.86 and 644,434.50 is: 966,202.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454,490.38 : 2,180,721.86 = 644,434.50 : x
  2. Step 2: Convert to fraction form
    1,454,490.38/2,180,721.86 = 644,434.50/x
  3. Step 3: Cross multiply
    1,454,490.38x = 2,180,721.86 × 644,434.50
  4. Step 4: Simplify right side
    1,454,490.38x = 1,405,332,401,488.17
  5. Step 5: Solve for x
    x = 1,405,332,401,488.17/1,454,490.38
  6. Step 6: Final answer
    x = 966,202.61

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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.