Home / 857,272.40-1,285,422.60-324,810.80

Finding the Fourth Proportional to 857,272.40, 1,285,422.60 and 324,810.80

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Solution

The fourth proportional to 857,272.40, 1,285,422.60 and 324,810.80 is: 487,032.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,272.40 : 1,285,422.60 = 324,810.80 : x
  2. Step 2: Convert to fraction form
    857,272.40/1,285,422.60 = 324,810.80/x
  3. Step 3: Cross multiply
    857,272.40x = 1,285,422.60 × 324,810.80
  4. Step 4: Simplify right side
    857,272.40x = 417,519,143,044.08
  5. Step 5: Solve for x
    x = 417,519,143,044.08/857,272.40
  6. Step 6: Final answer
    x = 487,032.06

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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.