Home / 1,218,531.17-1,681,625.57-674,666.96

Finding the Fourth Proportional to 1,218,531.17, 1,681,625.57 and 674,666.96

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Solution

The fourth proportional to 1,218,531.17, 1,681,625.57 and 674,666.96 is: 931,069.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,531.17 : 1,681,625.57 = 674,666.96 : x
  2. Step 2: Convert to fraction form
    1,218,531.17/1,681,625.57 = 674,666.96/x
  3. Step 3: Cross multiply
    1,218,531.17x = 1,681,625.57 × 674,666.96
  4. Step 4: Simplify right side
    1,218,531.17x = 1,134,537,199,388.70
  5. Step 5: Solve for x
    x = 1,134,537,199,388.70/1,218,531.17
  6. Step 6: Final answer
    x = 931,069.49

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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.