Home / 1,078,694.73-1,487,970.18-691,372.17

Finding the Fourth Proportional to 1,078,694.73, 1,487,970.18 and 691,372.17

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Solution

The fourth proportional to 1,078,694.73, 1,487,970.18 and 691,372.17 is: 953,690.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,694.73 : 1,487,970.18 = 691,372.17 : x
  2. Step 2: Convert to fraction form
    1,078,694.73/1,487,970.18 = 691,372.17/x
  3. Step 3: Cross multiply
    1,078,694.73x = 1,487,970.18 × 691,372.17
  4. Step 4: Simplify right side
    1,078,694.73x = 1,028,741,172,241.89
  5. Step 5: Solve for x
    x = 1,028,741,172,241.89/1,078,694.73
  6. Step 6: Final answer
    x = 953,690.74

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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.