Home / 804,976.35-1,207,464.53-431,728.35

Finding the Fourth Proportional to 804,976.35, 1,207,464.53 and 431,728.35

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Solution

The fourth proportional to 804,976.35, 1,207,464.53 and 431,728.35 is: 647,592.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,976.35 : 1,207,464.53 = 431,728.35 : x
  2. Step 2: Convert to fraction form
    804,976.35/1,207,464.53 = 431,728.35/x
  3. Step 3: Cross multiply
    804,976.35x = 1,207,464.53 × 431,728.35
  4. Step 4: Simplify right side
    804,976.35x = 521,296,667,061.78
  5. Step 5: Solve for x
    x = 521,296,667,061.78/804,976.35
  6. Step 6: Final answer
    x = 647,592.53

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Half scale
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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.