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Finding the Fourth Proportional to 503.70, 750.27 and 480.02

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Solution

The fourth proportional to 503.70, 750.27 and 480.02 is: 714.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.70 : 750.27 = 480.02 : x
  2. Step 2: Convert to fraction form
    503.70/750.27 = 480.02/x
  3. Step 3: Cross multiply
    503.70x = 750.27 × 480.02
  4. Step 4: Simplify right side
    503.70x = 360,140.85
  5. Step 5: Solve for x
    x = 360,140.85/503.70
  6. Step 6: Final answer
    x = 714.99

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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.