Home / 1,981,567.80-2,734,624.80-1,122,109.20

Finding the Fourth Proportional to 1,981,567.80, 2,734,624.80 and 1,122,109.20

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Solution

The fourth proportional to 1,981,567.80, 2,734,624.80 and 1,122,109.20 is: 1,548,545.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,567.80 : 2,734,624.80 = 1,122,109.20 : x
  2. Step 2: Convert to fraction form
    1,981,567.80/2,734,624.80 = 1,122,109.20/x
  3. Step 3: Cross multiply
    1,981,567.80x = 2,734,624.80 × 1,122,109.20
  4. Step 4: Simplify right side
    1,981,567.80x = 3,068,547,646,628.16
  5. Step 5: Solve for x
    x = 3,068,547,646,628.16/1,981,567.80
  6. Step 6: Final answer
    x = 1,548,545.37

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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.