Home / 820,520.70-1,230,246.45-736,539.90

Finding the Fourth Proportional to 820,520.70, 1,230,246.45 and 736,539.90

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Solution

The fourth proportional to 820,520.70, 1,230,246.45 and 736,539.90 is: 1,104,329.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,520.70 : 1,230,246.45 = 736,539.90 : x
  2. Step 2: Convert to fraction form
    820,520.70/1,230,246.45 = 736,539.90/x
  3. Step 3: Cross multiply
    820,520.70x = 1,230,246.45 × 736,539.90
  4. Step 4: Simplify right side
    820,520.70x = 906,125,597,258.36
  5. Step 5: Solve for x
    x = 906,125,597,258.36/820,520.70
  6. Step 6: Final answer
    x = 1,104,329.97

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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.