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Finding the Fourth Proportional to 973.38, 1,343.60 and 575.03

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Solution

The fourth proportional to 973.38, 1,343.60 and 575.03 is: 793.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.38 : 1,343.60 = 575.03 : x
  2. Step 2: Convert to fraction form
    973.38/1,343.60 = 575.03/x
  3. Step 3: Cross multiply
    973.38x = 1,343.60 × 575.03
  4. Step 4: Simplify right side
    973.38x = 772,600.71
  5. Step 5: Solve for x
    x = 772,600.71/973.38
  6. Step 6: Final answer
    x = 793.73

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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.