Home / 1,298.34-1,947.50-324.44

Finding the Fourth Proportional to 1,298.34, 1,947.50 and 324.44

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Solution

The fourth proportional to 1,298.34, 1,947.50 and 324.44 is: 486.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298.34 : 1,947.50 = 324.44 : x
  2. Step 2: Convert to fraction form
    1,298.34/1,947.50 = 324.44/x
  3. Step 3: Cross multiply
    1,298.34x = 1,947.50 × 324.44
  4. Step 4: Simplify right side
    1,298.34x = 631,846.90
  5. Step 5: Solve for x
    x = 631,846.90/1,298.34
  6. Step 6: Final answer
    x = 486.66

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.