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Finding the Fourth Proportional to 1,041.22, 1,437.04 and 648.37

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Solution

The fourth proportional to 1,041.22, 1,437.04 and 648.37 is: 894.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041.22 : 1,437.04 = 648.37 : x
  2. Step 2: Convert to fraction form
    1,041.22/1,437.04 = 648.37/x
  3. Step 3: Cross multiply
    1,041.22x = 1,437.04 × 648.37
  4. Step 4: Simplify right side
    1,041.22x = 931,723.20
  5. Step 5: Solve for x
    x = 931,723.20/1,041.22
  6. Step 6: Final answer
    x = 894.84

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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.