Home / 876,007.70-1,314,011.55-515,808.80

Finding the Fourth Proportional to 876,007.70, 1,314,011.55 and 515,808.80

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Solution

The fourth proportional to 876,007.70, 1,314,011.55 and 515,808.80 is: 773,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,007.70 : 1,314,011.55 = 515,808.80 : x
  2. Step 2: Convert to fraction form
    876,007.70/1,314,011.55 = 515,808.80/x
  3. Step 3: Cross multiply
    876,007.70x = 1,314,011.55 × 515,808.80
  4. Step 4: Simplify right side
    876,007.70x = 677,778,720,791.64
  5. Step 5: Solve for x
    x = 677,778,720,791.64/876,007.70
  6. Step 6: Final answer
    x = 773,713.20

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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.