Home / 869,403.20-1,304,104.80-629,902.40

Finding the Fourth Proportional to 869,403.20, 1,304,104.80 and 629,902.40

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Solution

The fourth proportional to 869,403.20, 1,304,104.80 and 629,902.40 is: 944,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,403.20 : 1,304,104.80 = 629,902.40 : x
  2. Step 2: Convert to fraction form
    869,403.20/1,304,104.80 = 629,902.40/x
  3. Step 3: Cross multiply
    869,403.20x = 1,304,104.80 × 629,902.40
  4. Step 4: Simplify right side
    869,403.20x = 821,458,743,371.52
  5. Step 5: Solve for x
    x = 821,458,743,371.52/869,403.20
  6. Step 6: Final answer
    x = 944,853.60

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Similar ratio
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1.5x scale

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.