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Finding the Fourth Proportional to 834.99, 1,152.32 and 480.93

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Solution

The fourth proportional to 834.99, 1,152.32 and 480.93 is: 663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    834.99 : 1,152.32 = 480.93 : x
  2. Step 2: Convert to fraction form
    834.99/1,152.32 = 480.93/x
  3. Step 3: Cross multiply
    834.99x = 1,152.32 × 480.93
  4. Step 4: Simplify right side
    834.99x = 554,182.85
  5. Step 5: Solve for x
    x = 554,182.85/834.99
  6. Step 6: Final answer
    x = 663.70

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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.