Home / 515,822.80-773,734.20-303,246.40

Finding the Fourth Proportional to 515,822.80, 773,734.20 and 303,246.40

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Solution

The fourth proportional to 515,822.80, 773,734.20 and 303,246.40 is: 454,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,822.80 : 773,734.20 = 303,246.40 : x
  2. Step 2: Convert to fraction form
    515,822.80/773,734.20 = 303,246.40/x
  3. Step 3: Cross multiply
    515,822.80x = 773,734.20 × 303,246.40
  4. Step 4: Simplify right side
    515,822.80x = 234,632,110,706.88
  5. Step 5: Solve for x
    x = 234,632,110,706.88/515,822.80
  6. Step 6: Final answer
    x = 454,869.60

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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.