Home / 814,849.25-1,223,078.65-611,739.21

Finding the Fourth Proportional to 814,849.25, 1,223,078.65 and 611,739.21

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Solution

The fourth proportional to 814,849.25, 1,223,078.65 and 611,739.21 is: 918,213.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,849.25 : 1,223,078.65 = 611,739.21 : x
  2. Step 2: Convert to fraction form
    814,849.25/1,223,078.65 = 611,739.21/x
  3. Step 3: Cross multiply
    814,849.25x = 1,223,078.65 × 611,739.21
  4. Step 4: Simplify right side
    814,849.25x = 748,205,171,705.91
  5. Step 5: Solve for x
    x = 748,205,171,705.91/814,849.25
  6. Step 6: Final answer
    x = 918,213.00

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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.