Home / 1,609,769.28-2,220,556.54-1,005,107.52

Finding the Fourth Proportional to 1,609,769.28, 2,220,556.54 and 1,005,107.52

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Solution

The fourth proportional to 1,609,769.28, 2,220,556.54 and 1,005,107.52 is: 1,386,470.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609,769.28 : 2,220,556.54 = 1,005,107.52 : x
  2. Step 2: Convert to fraction form
    1,609,769.28/2,220,556.54 = 1,005,107.52/x
  3. Step 3: Cross multiply
    1,609,769.28x = 2,220,556.54 × 1,005,107.52
  4. Step 4: Simplify right side
    1,609,769.28x = 2,231,898,076,939.18
  5. Step 5: Solve for x
    x = 2,231,898,076,939.18/1,609,769.28
  6. Step 6: Final answer
    x = 1,386,470.78

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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.