Home / 1,218,538.18-1,681,635.23-674,673.98

Finding the Fourth Proportional to 1,218,538.18, 1,681,635.23 and 674,673.98

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Solution

The fourth proportional to 1,218,538.18, 1,681,635.23 and 674,673.98 is: 931,079.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,538.18 : 1,681,635.23 = 674,673.98 : x
  2. Step 2: Convert to fraction form
    1,218,538.18/1,681,635.23 = 674,673.98/x
  3. Step 3: Cross multiply
    1,218,538.18x = 1,681,635.23 × 674,673.98
  4. Step 4: Simplify right side
    1,218,538.18x = 1,134,555,524,280.80
  5. Step 5: Solve for x
    x = 1,134,555,524,280.80/1,218,538.18
  6. Step 6: Final answer
    x = 931,079.17

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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.