Home / 918,974.80-1,375,351.80-807,000.40

Finding the Fourth Proportional to 918,974.80, 1,375,351.80 and 807,000.40

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Solution

The fourth proportional to 918,974.80, 1,375,351.80 and 807,000.40 is: 1,207,769.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,974.80 : 1,375,351.80 = 807,000.40 : x
  2. Step 2: Convert to fraction form
    918,974.80/1,375,351.80 = 807,000.40/x
  3. Step 3: Cross multiply
    918,974.80x = 1,375,351.80 × 807,000.40
  4. Step 4: Simplify right side
    918,974.80x = 1,109,909,452,740.72
  5. Step 5: Solve for x
    x = 1,109,909,452,740.72/918,974.80
  6. Step 6: Final answer
    x = 1,207,769.19

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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.