Home / 1,187,713.70-1,781,570.55-988,259.30

Finding the Fourth Proportional to 1,187,713.70, 1,781,570.55 and 988,259.30

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Solution

The fourth proportional to 1,187,713.70, 1,781,570.55 and 988,259.30 is: 1,482,388.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,713.70 : 1,781,570.55 = 988,259.30 : x
  2. Step 2: Convert to fraction form
    1,187,713.70/1,781,570.55 = 988,259.30/x
  3. Step 3: Cross multiply
    1,187,713.70x = 1,781,570.55 × 988,259.30
  4. Step 4: Simplify right side
    1,187,713.70x = 1,760,653,664,643.62
  5. Step 5: Solve for x
    x = 1,760,653,664,643.62/1,187,713.70
  6. Step 6: Final answer
    x = 1,482,388.95

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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.