Home / 1,781,659.80-2,668,860.90-1,105,666.20

Finding the Fourth Proportional to 1,781,659.80, 2,668,860.90 and 1,105,666.20

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Solution

The fourth proportional to 1,781,659.80, 2,668,860.90 and 1,105,666.20 is: 1,656,247.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,659.80 : 2,668,860.90 = 1,105,666.20 : x
  2. Step 2: Convert to fraction form
    1,781,659.80/2,668,860.90 = 1,105,666.20/x
  3. Step 3: Cross multiply
    1,781,659.80x = 2,668,860.90 × 1,105,666.20
  4. Step 4: Simplify right side
    1,781,659.80x = 2,950,869,289,631.58
  5. Step 5: Solve for x
    x = 2,950,869,289,631.58/1,781,659.80
  6. Step 6: Final answer
    x = 1,656,247.33

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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.