Home / 1,218,675.40-1,681,751.45-674,799.48

Finding the Fourth Proportional to 1,218,675.40, 1,681,751.45 and 674,799.48

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Solution

The fourth proportional to 1,218,675.40, 1,681,751.45 and 674,799.48 is: 931,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,675.40 : 1,681,751.45 = 674,799.48 : x
  2. Step 2: Convert to fraction form
    1,218,675.40/1,681,751.45 = 674,799.48/x
  3. Step 3: Cross multiply
    1,218,675.40x = 1,681,751.45 × 674,799.48
  4. Step 4: Simplify right side
    1,218,675.40x = 1,134,845,000,575.25
  5. Step 5: Solve for x
    x = 1,134,845,000,575.25/1,218,675.40
  6. Step 6: Final answer
    x = 931,211.87

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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.