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Finding the Fourth Proportional to 753.56, 1,040.46 and 567.48

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Solution

The fourth proportional to 753.56, 1,040.46 and 567.48 is: 783.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    753.56 : 1,040.46 = 567.48 : x
  2. Step 2: Convert to fraction form
    753.56/1,040.46 = 567.48/x
  3. Step 3: Cross multiply
    753.56x = 1,040.46 × 567.48
  4. Step 4: Simplify right side
    753.56x = 590,440.24
  5. Step 5: Solve for x
    x = 590,440.24/753.56
  6. Step 6: Final answer
    x = 783.53

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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.