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Finding the Fourth Proportional to 873.99, 1,310.99 and 463.59

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Solution

The fourth proportional to 873.99, 1,310.99 and 463.59 is: 695.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    873.99 : 1,310.99 = 463.59 : x
  2. Step 2: Convert to fraction form
    873.99/1,310.99 = 463.59/x
  3. Step 3: Cross multiply
    873.99x = 1,310.99 × 463.59
  4. Step 4: Simplify right side
    873.99x = 607,759.54
  5. Step 5: Solve for x
    x = 607,759.54/873.99
  6. Step 6: Final answer
    x = 695.39

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Double scale
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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.