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Finding the Fourth Proportional to 1,866,502.99, 2,576,570.31 and 1,255,010.20

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Solution

The fourth proportional to 1,866,502.99, 2,576,570.31 and 1,255,010.20 is: 1,732,449.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,502.99 : 2,576,570.31 = 1,255,010.20 : x
  2. Step 2: Convert to fraction form
    1,866,502.99/2,576,570.31 = 1,255,010.20/x
  3. Step 3: Cross multiply
    1,866,502.99x = 2,576,570.31 × 1,255,010.20
  4. Step 4: Simplify right side
    1,866,502.99x = 3,233,622,020,067.16
  5. Step 5: Solve for x
    x = 3,233,622,020,067.16/1,866,502.99
  6. Step 6: Final answer
    x = 1,732,449.42

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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.