Home / 1,261,938.20-1,741,465.62-688,978.38

Finding the Fourth Proportional to 1,261,938.20, 1,741,465.62 and 688,978.38

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Solution

The fourth proportional to 1,261,938.20, 1,741,465.62 and 688,978.38 is: 950,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,938.20 : 1,741,465.62 = 688,978.38 : x
  2. Step 2: Convert to fraction form
    1,261,938.20/1,741,465.62 = 688,978.38/x
  3. Step 3: Cross multiply
    1,261,938.20x = 1,741,465.62 × 688,978.38
  4. Step 4: Simplify right side
    1,261,938.20x = 1,199,832,161,693.30
  5. Step 5: Solve for x
    x = 1,199,832,161,693.30/1,261,938.20
  6. Step 6: Final answer
    x = 950,785.20

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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.