Home / 869,416.80-1,304,125.20-550,552.20

Finding the Fourth Proportional to 869,416.80, 1,304,125.20 and 550,552.20

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Solution

The fourth proportional to 869,416.80, 1,304,125.20 and 550,552.20 is: 825,828.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,416.80 : 1,304,125.20 = 550,552.20 : x
  2. Step 2: Convert to fraction form
    869,416.80/1,304,125.20 = 550,552.20/x
  3. Step 3: Cross multiply
    869,416.80x = 1,304,125.20 × 550,552.20
  4. Step 4: Simplify right side
    869,416.80x = 717,988,997,935.44
  5. Step 5: Solve for x
    x = 717,988,997,935.44/869,416.80
  6. Step 6: Final answer
    x = 825,828.30

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Double scale
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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.