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Finding the Fourth Proportional to 490,685.10, 736,027.65 and 301,728.30

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Solution

The fourth proportional to 490,685.10, 736,027.65 and 301,728.30 is: 452,592.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,685.10 : 736,027.65 = 301,728.30 : x
  2. Step 2: Convert to fraction form
    490,685.10/736,027.65 = 301,728.30/x
  3. Step 3: Cross multiply
    490,685.10x = 736,027.65 × 301,728.30
  4. Step 4: Simplify right side
    490,685.10x = 222,080,371,587.50
  5. Step 5: Solve for x
    x = 222,080,371,587.50/490,685.10
  6. Step 6: Final answer
    x = 452,592.45

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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.