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Finding the Fourth Proportional to 952.40, 1,426.61 and 488.77

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Solution

The fourth proportional to 952.40, 1,426.61 and 488.77 is: 732.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.40 : 1,426.61 = 488.77 : x
  2. Step 2: Convert to fraction form
    952.40/1,426.61 = 488.77/x
  3. Step 3: Cross multiply
    952.40x = 1,426.61 × 488.77
  4. Step 4: Simplify right side
    952.40x = 697,284.17
  5. Step 5: Solve for x
    x = 697,284.17/952.40
  6. Step 6: Final answer
    x = 732.13

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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.