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Finding the Fourth Proportional to 501.15, 752.58 and 479.55

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Solution

The fourth proportional to 501.15, 752.58 and 479.55 is: 720.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.15 : 752.58 = 479.55 : x
  2. Step 2: Convert to fraction form
    501.15/752.58 = 479.55/x
  3. Step 3: Cross multiply
    501.15x = 752.58 × 479.55
  4. Step 4: Simplify right side
    501.15x = 360,899.74
  5. Step 5: Solve for x
    x = 360,899.74/501.15
  6. Step 6: Final answer
    x = 720.14

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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.