Home / 930,812.20-1,396,218.30-331,792.90

Finding the Fourth Proportional to 930,812.20, 1,396,218.30 and 331,792.90

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Solution

The fourth proportional to 930,812.20, 1,396,218.30 and 331,792.90 is: 497,689.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,812.20 : 1,396,218.30 = 331,792.90 : x
  2. Step 2: Convert to fraction form
    930,812.20/1,396,218.30 = 331,792.90/x
  3. Step 3: Cross multiply
    930,812.20x = 1,396,218.30 × 331,792.90
  4. Step 4: Simplify right side
    930,812.20x = 463,255,318,790.07
  5. Step 5: Solve for x
    x = 463,255,318,790.07/930,812.20
  6. Step 6: Final answer
    x = 497,689.35

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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.