Home / 1,240,472.70-1,856,043.45-820,568.70

Finding the Fourth Proportional to 1,240,472.70, 1,856,043.45 and 820,568.70

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Solution

The fourth proportional to 1,240,472.70, 1,856,043.45 and 820,568.70 is: 1,227,766.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,472.70 : 1,856,043.45 = 820,568.70 : x
  2. Step 2: Convert to fraction form
    1,240,472.70/1,856,043.45 = 820,568.70/x
  3. Step 3: Cross multiply
    1,240,472.70x = 1,856,043.45 × 820,568.70
  4. Step 4: Simplify right side
    1,240,472.70x = 1,523,011,160,910.02
  5. Step 5: Solve for x
    x = 1,523,011,160,910.02/1,240,472.70
  6. Step 6: Final answer
    x = 1,227,766.77

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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.