Home / 1,215,647.31-1,677,422.90-699,204.87

Finding the Fourth Proportional to 1,215,647.31, 1,677,422.90 and 699,204.87

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Solution

The fourth proportional to 1,215,647.31, 1,677,422.90 and 699,204.87 is: 964,804.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,647.31 : 1,677,422.90 = 699,204.87 : x
  2. Step 2: Convert to fraction form
    1,215,647.31/1,677,422.90 = 699,204.87/x
  3. Step 3: Cross multiply
    1,215,647.31x = 1,677,422.90 × 699,204.87
  4. Step 4: Simplify right side
    1,215,647.31x = 1,172,862,263,175.07
  5. Step 5: Solve for x
    x = 1,172,862,263,175.07/1,215,647.31
  6. Step 6: Final answer
    x = 964,804.72

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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.