Home / 1,218,682.40-1,681,761.08-674,806.48

Finding the Fourth Proportional to 1,218,682.40, 1,681,761.08 and 674,806.48

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Solution

The fourth proportional to 1,218,682.40, 1,681,761.08 and 674,806.48 is: 931,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,682.40 : 1,681,761.08 = 674,806.48 : x
  2. Step 2: Convert to fraction form
    1,218,682.40/1,681,761.08 = 674,806.48/x
  3. Step 3: Cross multiply
    1,218,682.40x = 1,681,761.08 × 674,806.48
  4. Step 4: Simplify right side
    1,218,682.40x = 1,134,863,274,595.80
  5. Step 5: Solve for x
    x = 1,134,863,274,595.80/1,218,682.40
  6. Step 6: Final answer
    x = 931,221.52

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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.