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Finding the Fourth Proportional to 491,279.40, 736,919.10 and 304,396.20

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Solution

The fourth proportional to 491,279.40, 736,919.10 and 304,396.20 is: 456,594.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,279.40 : 736,919.10 = 304,396.20 : x
  2. Step 2: Convert to fraction form
    491,279.40/736,919.10 = 304,396.20/x
  3. Step 3: Cross multiply
    491,279.40x = 736,919.10 × 304,396.20
  4. Step 4: Simplify right side
    491,279.40x = 224,315,373,747.42
  5. Step 5: Solve for x
    x = 224,315,373,747.42/491,279.40
  6. Step 6: Final answer
    x = 456,594.30

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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.