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Finding the Fourth Proportional to 503.76, 750.51 and 486.36

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Solution

The fourth proportional to 503.76, 750.51 and 486.36 is: 724.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.76 : 750.51 = 486.36 : x
  2. Step 2: Convert to fraction form
    503.76/750.51 = 486.36/x
  3. Step 3: Cross multiply
    503.76x = 750.51 × 486.36
  4. Step 4: Simplify right side
    503.76x = 365,018.04
  5. Step 5: Solve for x
    x = 365,018.04/503.76
  6. Step 6: Final answer
    x = 724.59

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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.