Home / 814,851.25-1,223,081.65-611,741.21

Finding the Fourth Proportional to 814,851.25, 1,223,081.65 and 611,741.21

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Solution

The fourth proportional to 814,851.25, 1,223,081.65 and 611,741.21 is: 918,215.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,851.25 : 1,223,081.65 = 611,741.21 : x
  2. Step 2: Convert to fraction form
    814,851.25/1,223,081.65 = 611,741.21/x
  3. Step 3: Cross multiply
    814,851.25x = 1,223,081.65 × 611,741.21
  4. Step 4: Simplify right side
    814,851.25x = 748,209,448,499.80
  5. Step 5: Solve for x
    x = 748,209,448,499.80/814,851.25
  6. Step 6: Final answer
    x = 918,215.99

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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.