Home / 1,176,486.40-1,765,619.84-861,761.28

Finding the Fourth Proportional to 1,176,486.40, 1,765,619.84 and 861,761.28

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Solution

The fourth proportional to 1,176,486.40, 1,765,619.84 and 861,761.28 is: 1,293,294.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176,486.40 : 1,765,619.84 = 861,761.28 : x
  2. Step 2: Convert to fraction form
    1,176,486.40/1,765,619.84 = 861,761.28/x
  3. Step 3: Cross multiply
    1,176,486.40x = 1,765,619.84 × 861,761.28
  4. Step 4: Simplify right side
    1,176,486.40x = 1,521,542,813,311.80
  5. Step 5: Solve for x
    x = 1,521,542,813,311.80/1,176,486.40
  6. Step 6: Final answer
    x = 1,293,294.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.