Home / 819,941.36-1,229,948.88-251,280.80

Finding the Fourth Proportional to 819,941.36, 1,229,948.88 and 251,280.80

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Solution

The fourth proportional to 819,941.36, 1,229,948.88 and 251,280.80 is: 376,932.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,941.36 : 1,229,948.88 = 251,280.80 : x
  2. Step 2: Convert to fraction form
    819,941.36/1,229,948.88 = 251,280.80/x
  3. Step 3: Cross multiply
    819,941.36x = 1,229,948.88 × 251,280.80
  4. Step 4: Simplify right side
    819,941.36x = 309,062,538,525.50
  5. Step 5: Solve for x
    x = 309,062,538,525.50/819,941.36
  6. Step 6: Final answer
    x = 376,932.49

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1.5x scale

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.