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Finding the Fourth Proportional to 1,218,674.88, 1,681,750.83 and 674,799

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Solution

The fourth proportional to 1,218,674.88, 1,681,750.83 and 674,799 is: 931,211.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,674.88 : 1,681,750.83 = 674,799 : x
  2. Step 2: Convert to fraction form
    1,218,674.88/1,681,750.83 = 674,799/x
  3. Step 3: Cross multiply
    1,218,674.88x = 1,681,750.83 × 674,799
  4. Step 4: Simplify right side
    1,218,674.88x = 1,134,843,778,333.17
  5. Step 5: Solve for x
    x = 1,134,843,778,333.17/1,218,674.88
  6. Step 6: Final answer
    x = 931,211.27

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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.