Home / 560,631.62-840,947.42-320,577.12

Finding the Fourth Proportional to 560,631.62, 840,947.42 and 320,577.12

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Solution

The fourth proportional to 560,631.62, 840,947.42 and 320,577.12 is: 480,865.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,631.62 : 840,947.42 = 320,577.12 : x
  2. Step 2: Convert to fraction form
    560,631.62/840,947.42 = 320,577.12/x
  3. Step 3: Cross multiply
    560,631.62x = 840,947.42 × 320,577.12
  4. Step 4: Simplify right side
    560,631.62x = 269,588,500,372.15
  5. Step 5: Solve for x
    x = 269,588,500,372.15/560,631.62
  6. Step 6: Final answer
    x = 480,865.68

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Half scale
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Double scale
Find fourth proportional to 560,632.62, 840,948.91 and 320,578.12
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.