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Finding the Fourth Proportional to 802,601.80, 1,203,902.70 and 715,510.60

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Solution

The fourth proportional to 802,601.80, 1,203,902.70 and 715,510.60 is: 1,073,265.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,601.80 : 1,203,902.70 = 715,510.60 : x
  2. Step 2: Convert to fraction form
    802,601.80/1,203,902.70 = 715,510.60/x
  3. Step 3: Cross multiply
    802,601.80x = 1,203,902.70 × 715,510.60
  4. Step 4: Simplify right side
    802,601.80x = 861,405,143,218.62
  5. Step 5: Solve for x
    x = 861,405,143,218.62/802,601.80
  6. Step 6: Final answer
    x = 1,073,265.90

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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.