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Finding the Fourth Proportional to 952.59, 1,314.12 and 621.12

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Solution

The fourth proportional to 952.59, 1,314.12 and 621.12 is: 856.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.59 : 1,314.12 = 621.12 : x
  2. Step 2: Convert to fraction form
    952.59/1,314.12 = 621.12/x
  3. Step 3: Cross multiply
    952.59x = 1,314.12 × 621.12
  4. Step 4: Simplify right side
    952.59x = 816,226.21
  5. Step 5: Solve for x
    x = 816,226.21/952.59
  6. Step 6: Final answer
    x = 856.85

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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.