Home / 814,403.88-1,221,683.58-253,287.72

Finding the Fourth Proportional to 814,403.88, 1,221,683.58 and 253,287.72

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Solution

The fourth proportional to 814,403.88, 1,221,683.58 and 253,287.72 is: 379,955.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,403.88 : 1,221,683.58 = 253,287.72 : x
  2. Step 2: Convert to fraction form
    814,403.88/1,221,683.58 = 253,287.72/x
  3. Step 3: Cross multiply
    814,403.88x = 1,221,683.58 × 253,287.72
  4. Step 4: Simplify right side
    814,403.88x = 309,437,448,539.64
  5. Step 5: Solve for x
    x = 309,437,448,539.64/814,403.88
  6. Step 6: Final answer
    x = 379,955.76

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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.