Home / 743,169.06-1,025,538.92-420,881.46

Finding the Fourth Proportional to 743,169.06, 1,025,538.92 and 420,881.46

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Solution

The fourth proportional to 743,169.06, 1,025,538.92 and 420,881.46 is: 580,796.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,169.06 : 1,025,538.92 = 420,881.46 : x
  2. Step 2: Convert to fraction form
    743,169.06/1,025,538.92 = 420,881.46/x
  3. Step 3: Cross multiply
    743,169.06x = 1,025,538.92 × 420,881.46
  4. Step 4: Simplify right side
    743,169.06x = 431,630,317,936.42
  5. Step 5: Solve for x
    x = 431,630,317,936.42/743,169.06
  6. Step 6: Final answer
    x = 580,796.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.