Home / 767,681.97-1,151,273.47-255,209.55

Finding the Fourth Proportional to 767,681.97, 1,151,273.47 and 255,209.55

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Solution

The fourth proportional to 767,681.97, 1,151,273.47 and 255,209.55 is: 382,731.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,681.97 : 1,151,273.47 = 255,209.55 : x
  2. Step 2: Convert to fraction form
    767,681.97/1,151,273.47 = 255,209.55/x
  3. Step 3: Cross multiply
    767,681.97x = 1,151,273.47 × 255,209.55
  4. Step 4: Simplify right side
    767,681.97x = 293,815,984,205.64
  5. Step 5: Solve for x
    x = 293,815,984,205.64/767,681.97
  6. Step 6: Final answer
    x = 382,731.39

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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.