Home / 491,723.40-737,585.10-342,424.20

Finding the Fourth Proportional to 491,723.40, 737,585.10 and 342,424.20

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Solution

The fourth proportional to 491,723.40, 737,585.10 and 342,424.20 is: 513,636.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,723.40 : 737,585.10 = 342,424.20 : x
  2. Step 2: Convert to fraction form
    491,723.40/737,585.10 = 342,424.20/x
  3. Step 3: Cross multiply
    491,723.40x = 737,585.10 × 342,424.20
  4. Step 4: Simplify right side
    491,723.40x = 252,566,987,799.42
  5. Step 5: Solve for x
    x = 252,566,987,799.42/491,723.40
  6. Step 6: Final answer
    x = 513,636.30

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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.