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Finding the Fourth Proportional to 503.47, 750.25 and 486.93

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Solution

The fourth proportional to 503.47, 750.25 and 486.93 is: 725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.47 : 750.25 = 486.93 : x
  2. Step 2: Convert to fraction form
    503.47/750.25 = 486.93/x
  3. Step 3: Cross multiply
    503.47x = 750.25 × 486.93
  4. Step 4: Simplify right side
    503.47x = 365,319.23
  5. Step 5: Solve for x
    x = 365,319.23/503.47
  6. Step 6: Final answer
    x = 725.60

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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.