Home / 819,720.40-1,229,580.60-503,150.80

Finding the Fourth Proportional to 819,720.40, 1,229,580.60 and 503,150.80

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Solution

The fourth proportional to 819,720.40, 1,229,580.60 and 503,150.80 is: 754,726.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,720.40 : 1,229,580.60 = 503,150.80 : x
  2. Step 2: Convert to fraction form
    819,720.40/1,229,580.60 = 503,150.80/x
  3. Step 3: Cross multiply
    819,720.40x = 1,229,580.60 × 503,150.80
  4. Step 4: Simplify right side
    819,720.40x = 618,664,462,554.48
  5. Step 5: Solve for x
    x = 618,664,462,554.48/819,720.40
  6. Step 6: Final answer
    x = 754,726.20

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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.