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Finding the Fourth Proportional to 952.99, 1,428.77 and 465.71

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Solution

The fourth proportional to 952.99, 1,428.77 and 465.71 is: 698.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.99 : 1,428.77 = 465.71 : x
  2. Step 2: Convert to fraction form
    952.99/1,428.77 = 465.71/x
  3. Step 3: Cross multiply
    952.99x = 1,428.77 × 465.71
  4. Step 4: Simplify right side
    952.99x = 665,386.50
  5. Step 5: Solve for x
    x = 665,386.50/952.99
  6. Step 6: Final answer
    x = 698.21

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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.