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Finding the Fourth Proportional to 870.22, 1,304.60 and 595.64

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Solution

The fourth proportional to 870.22, 1,304.60 and 595.64 is: 892.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    870.22 : 1,304.60 = 595.64 : x
  2. Step 2: Convert to fraction form
    870.22/1,304.60 = 595.64/x
  3. Step 3: Cross multiply
    870.22x = 1,304.60 × 595.64
  4. Step 4: Simplify right side
    870.22x = 777,071.94
  5. Step 5: Solve for x
    x = 777,071.94/870.22
  6. Step 6: Final answer
    x = 892.96

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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.