Home / 743,062.52-1,025,426.21-420,772.54

Finding the Fourth Proportional to 743,062.52, 1,025,426.21 and 420,772.54

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Solution

The fourth proportional to 743,062.52, 1,025,426.21 and 420,772.54 is: 580,666.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,062.52 : 1,025,426.21 = 420,772.54 : x
  2. Step 2: Convert to fraction form
    743,062.52/1,025,426.21 = 420,772.54/x
  3. Step 3: Cross multiply
    743,062.52x = 1,025,426.21 × 420,772.54
  4. Step 4: Simplify right side
    743,062.52x = 431,471,185,076.93
  5. Step 5: Solve for x
    x = 431,471,185,076.93/743,062.52
  6. Step 6: Final answer
    x = 580,666.06

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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.