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Finding the Fourth Proportional to 753.02, 1,039.15 and 473.41

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Solution

The fourth proportional to 753.02, 1,039.15 and 473.41 is: 653.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    753.02 : 1,039.15 = 473.41 : x
  2. Step 2: Convert to fraction form
    753.02/1,039.15 = 473.41/x
  3. Step 3: Cross multiply
    753.02x = 1,039.15 × 473.41
  4. Step 4: Simplify right side
    753.02x = 491,944.00
  5. Step 5: Solve for x
    x = 491,944.00/753.02
  6. Step 6: Final answer
    x = 653.29

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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.