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Finding the Fourth Proportional to 502.64, 750.96 and 479.96

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Solution

The fourth proportional to 502.64, 750.96 and 479.96 is: 717.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.64 : 750.96 = 479.96 : x
  2. Step 2: Convert to fraction form
    502.64/750.96 = 479.96/x
  3. Step 3: Cross multiply
    502.64x = 750.96 × 479.96
  4. Step 4: Simplify right side
    502.64x = 360,430.76
  5. Step 5: Solve for x
    x = 360,430.76/502.64
  6. Step 6: Final answer
    x = 717.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.