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Finding the Fourth Proportional to 1,300.06, 1,948.86 and 433.75

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Solution

The fourth proportional to 1,300.06, 1,948.86 and 433.75 is: 650.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300.06 : 1,948.86 = 433.75 : x
  2. Step 2: Convert to fraction form
    1,300.06/1,948.86 = 433.75/x
  3. Step 3: Cross multiply
    1,300.06x = 1,948.86 × 433.75
  4. Step 4: Simplify right side
    1,300.06x = 845,318.03
  5. Step 5: Solve for x
    x = 845,318.03/1,300.06
  6. Step 6: Final answer
    x = 650.21

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.