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Finding the Fourth Proportional to 456,853.79, 630,463.21 and 252,908.12

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Solution

The fourth proportional to 456,853.79, 630,463.21 and 252,908.12 is: 349,015.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,853.79 : 630,463.21 = 252,908.12 : x
  2. Step 2: Convert to fraction form
    456,853.79/630,463.21 = 252,908.12/x
  3. Step 3: Cross multiply
    456,853.79x = 630,463.21 × 252,908.12
  4. Step 4: Simplify right side
    456,853.79x = 159,449,261,385.68
  5. Step 5: Solve for x
    x = 159,449,261,385.68/456,853.79
  6. Step 6: Final answer
    x = 349,015.96

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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.