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Finding the Fourth Proportional to 790.01, 1,182.57 and 634.49

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Solution

The fourth proportional to 790.01, 1,182.57 and 634.49 is: 949.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    790.01 : 1,182.57 = 634.49 : x
  2. Step 2: Convert to fraction form
    790.01/1,182.57 = 634.49/x
  3. Step 3: Cross multiply
    790.01x = 1,182.57 × 634.49
  4. Step 4: Simplify right side
    790.01x = 750,328.84
  5. Step 5: Solve for x
    x = 750,328.84/790.01
  6. Step 6: Final answer
    x = 949.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.