Home / 1,218,686.50-1,681,766.70-674,810.58

Finding the Fourth Proportional to 1,218,686.50, 1,681,766.70 and 674,810.58

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Solution

The fourth proportional to 1,218,686.50, 1,681,766.70 and 674,810.58 is: 931,227.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,686.50 : 1,681,766.70 = 674,810.58 : x
  2. Step 2: Convert to fraction form
    1,218,686.50/1,681,766.70 = 674,810.58/x
  3. Step 3: Cross multiply
    1,218,686.50x = 1,681,766.70 × 674,810.58
  4. Step 4: Simplify right side
    1,218,686.50x = 1,134,873,962,251.69
  5. Step 5: Solve for x
    x = 1,134,873,962,251.69/1,218,686.50
  6. Step 6: Final answer
    x = 931,227.16

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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.