Home / 1,660,178.40-2,290,952.24-981,178.08

Finding the Fourth Proportional to 1,660,178.40, 2,290,952.24 and 981,178.08

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Solution

The fourth proportional to 1,660,178.40, 2,290,952.24 and 981,178.08 is: 1,353,970.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660,178.40 : 2,290,952.24 = 981,178.08 : x
  2. Step 2: Convert to fraction form
    1,660,178.40/2,290,952.24 = 981,178.08/x
  3. Step 3: Cross multiply
    1,660,178.40x = 2,290,952.24 × 981,178.08
  4. Step 4: Simplify right side
    1,660,178.40x = 2,247,832,120,214.90
  5. Step 5: Solve for x
    x = 2,247,832,120,214.90/1,660,178.40
  6. Step 6: Final answer
    x = 1,353,970.22

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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.