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Finding the Fourth Proportional to 575.76, 793.52 and 470.17

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Solution

The fourth proportional to 575.76, 793.52 and 470.17 is: 647.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.76 : 793.52 = 470.17 : x
  2. Step 2: Convert to fraction form
    575.76/793.52 = 470.17/x
  3. Step 3: Cross multiply
    575.76x = 793.52 × 470.17
  4. Step 4: Simplify right side
    575.76x = 373,082.98
  5. Step 5: Solve for x
    x = 373,082.98/575.76
  6. Step 6: Final answer
    x = 647.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.