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Finding the Fourth Proportional to 906,770.80, 1,360,207.40 and 275,705.20

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Solution

The fourth proportional to 906,770.80, 1,360,207.40 and 275,705.20 is: 413,573.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,770.80 : 1,360,207.40 = 275,705.20 : x
  2. Step 2: Convert to fraction form
    906,770.80/1,360,207.40 = 275,705.20/x
  3. Step 3: Cross multiply
    906,770.80x = 1,360,207.40 × 275,705.20
  4. Step 4: Simplify right side
    906,770.80x = 375,016,253,258.48
  5. Step 5: Solve for x
    x = 375,016,253,258.48/906,770.80
  6. Step 6: Final answer
    x = 413,573.37

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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.