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Finding the Fourth Proportional to 630.51, 949.48 and 550.32

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Solution

The fourth proportional to 630.51, 949.48 and 550.32 is: 828.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.51 : 949.48 = 550.32 : x
  2. Step 2: Convert to fraction form
    630.51/949.48 = 550.32/x
  3. Step 3: Cross multiply
    630.51x = 949.48 × 550.32
  4. Step 4: Simplify right side
    630.51x = 522,517.83
  5. Step 5: Solve for x
    x = 522,517.83/630.51
  6. Step 6: Final answer
    x = 828.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.