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Finding the Fourth Proportional to 973.56, 1,343.52 and 531.47

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Solution

The fourth proportional to 973.56, 1,343.52 and 531.47 is: 733.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.56 : 1,343.52 = 531.47 : x
  2. Step 2: Convert to fraction form
    973.56/1,343.52 = 531.47/x
  3. Step 3: Cross multiply
    973.56x = 1,343.52 × 531.47
  4. Step 4: Simplify right side
    973.56x = 714,043.93
  5. Step 5: Solve for x
    x = 714,043.93/973.56
  6. Step 6: Final answer
    x = 733.43

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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.