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Finding the Fourth Proportional to 457,134.39, 630,850.10 and 275,811.28

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Solution

The fourth proportional to 457,134.39, 630,850.10 and 275,811.28 is: 380,622.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,134.39 : 630,850.10 = 275,811.28 : x
  2. Step 2: Convert to fraction form
    457,134.39/630,850.10 = 275,811.28/x
  3. Step 3: Cross multiply
    457,134.39x = 630,850.10 × 275,811.28
  4. Step 4: Simplify right side
    457,134.39x = 173,995,570,612.95
  5. Step 5: Solve for x
    x = 173,995,570,612.95/457,134.39
  6. Step 6: Final answer
    x = 380,622.36

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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.