Home / 1,190,774.80-1,643,238.12-707,340.88

Finding the Fourth Proportional to 1,190,774.80, 1,643,238.12 and 707,340.88

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Solution

The fourth proportional to 1,190,774.80, 1,643,238.12 and 707,340.88 is: 976,111.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,774.80 : 1,643,238.12 = 707,340.88 : x
  2. Step 2: Convert to fraction form
    1,190,774.80/1,643,238.12 = 707,340.88/x
  3. Step 3: Cross multiply
    1,190,774.80x = 1,643,238.12 × 707,340.88
  4. Step 4: Simplify right side
    1,190,774.80x = 1,162,329,497,850.35
  5. Step 5: Solve for x
    x = 1,162,329,497,850.35/1,190,774.80
  6. Step 6: Final answer
    x = 976,111.94

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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.