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Finding the Fourth Proportional to 570.75, 790.88 and 536.07

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Solution

The fourth proportional to 570.75, 790.88 and 536.07 is: 742.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.75 : 790.88 = 536.07 : x
  2. Step 2: Convert to fraction form
    570.75/790.88 = 536.07/x
  3. Step 3: Cross multiply
    570.75x = 790.88 × 536.07
  4. Step 4: Simplify right side
    570.75x = 423,967.04
  5. Step 5: Solve for x
    x = 423,967.04/570.75
  6. Step 6: Final answer
    x = 742.82

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.