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Finding the Fourth Proportional to 575.04, 858.15 and 513.53

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Solution

The fourth proportional to 575.04, 858.15 and 513.53 is: 766.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.04 : 858.15 = 513.53 : x
  2. Step 2: Convert to fraction form
    575.04/858.15 = 513.53/x
  3. Step 3: Cross multiply
    575.04x = 858.15 × 513.53
  4. Step 4: Simplify right side
    575.04x = 440,689.84
  5. Step 5: Solve for x
    x = 440,689.84/575.04
  6. Step 6: Final answer
    x = 766.36

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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.