Home / 864,072.80-1,296,109.20-814,209.20

Finding the Fourth Proportional to 864,072.80, 1,296,109.20 and 814,209.20

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Solution

The fourth proportional to 864,072.80, 1,296,109.20 and 814,209.20 is: 1,221,313.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,072.80 : 1,296,109.20 = 814,209.20 : x
  2. Step 2: Convert to fraction form
    864,072.80/1,296,109.20 = 814,209.20/x
  3. Step 3: Cross multiply
    864,072.80x = 1,296,109.20 × 814,209.20
  4. Step 4: Simplify right side
    864,072.80x = 1,055,304,034,844.64
  5. Step 5: Solve for x
    x = 1,055,304,034,844.64/864,072.80
  6. Step 6: Final answer
    x = 1,221,313.80

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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.