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Finding the Fourth Proportional to 491,088.64, 736,632.96 and 324,837.76

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Solution

The fourth proportional to 491,088.64, 736,632.96 and 324,837.76 is: 487,256.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,088.64 : 736,632.96 = 324,837.76 : x
  2. Step 2: Convert to fraction form
    491,088.64/736,632.96 = 324,837.76/x
  3. Step 3: Cross multiply
    491,088.64x = 736,632.96 × 324,837.76
  4. Step 4: Simplify right side
    491,088.64x = 239,286,200,668.57
  5. Step 5: Solve for x
    x = 239,286,200,668.57/491,088.64
  6. Step 6: Final answer
    x = 487,256.64

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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.