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Finding the Fourth Proportional to 753.33, 1,039.28 and 532.47

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Solution

The fourth proportional to 753.33, 1,039.28 and 532.47 is: 734.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    753.33 : 1,039.28 = 532.47 : x
  2. Step 2: Convert to fraction form
    753.33/1,039.28 = 532.47/x
  3. Step 3: Cross multiply
    753.33x = 1,039.28 × 532.47
  4. Step 4: Simplify right side
    753.33x = 553,382.76
  5. Step 5: Solve for x
    x = 553,382.76/753.33
  6. Step 6: Final answer
    x = 734.58

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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.