Home / 1,080,032.80-1,490,490.51-621,147.68

Finding the Fourth Proportional to 1,080,032.80, 1,490,490.51 and 621,147.68

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Solution

The fourth proportional to 1,080,032.80, 1,490,490.51 and 621,147.68 is: 857,209.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,032.80 : 1,490,490.51 = 621,147.68 : x
  2. Step 2: Convert to fraction form
    1,080,032.80/1,490,490.51 = 621,147.68/x
  3. Step 3: Cross multiply
    1,080,032.80x = 1,490,490.51 × 621,147.68
  4. Step 4: Simplify right side
    1,080,032.80x = 925,814,722,348.52
  5. Step 5: Solve for x
    x = 925,814,722,348.52/1,080,032.80
  6. Step 6: Final answer
    x = 857,209.82

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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.