Home / 457,018.20-630,685.44-250,285.55

Finding the Fourth Proportional to 457,018.20, 630,685.44 and 250,285.55

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Solution

The fourth proportional to 457,018.20, 630,685.44 and 250,285.55 is: 345,394.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,018.20 : 630,685.44 = 250,285.55 : x
  2. Step 2: Convert to fraction form
    457,018.20/630,685.44 = 250,285.55/x
  3. Step 3: Cross multiply
    457,018.20x = 630,685.44 × 250,285.55
  4. Step 4: Simplify right side
    457,018.20x = 157,851,449,073.97
  5. Step 5: Solve for x
    x = 157,851,449,073.97/457,018.20
  6. Step 6: Final answer
    x = 345,394.23

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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.