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Finding the Fourth Proportional to 500.01, 750.93 and 478.74

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Solution

The fourth proportional to 500.01, 750.93 and 478.74 is: 718.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.01 : 750.93 = 478.74 : x
  2. Step 2: Convert to fraction form
    500.01/750.93 = 478.74/x
  3. Step 3: Cross multiply
    500.01x = 750.93 × 478.74
  4. Step 4: Simplify right side
    500.01x = 359,500.23
  5. Step 5: Solve for x
    x = 359,500.23/500.01
  6. Step 6: Final answer
    x = 718.99

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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.