Home / 769,872.80-1,154,809.20-237,346.40

Finding the Fourth Proportional to 769,872.80, 1,154,809.20 and 237,346.40

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Solution

The fourth proportional to 769,872.80, 1,154,809.20 and 237,346.40 is: 356,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,872.80 : 1,154,809.20 = 237,346.40 : x
  2. Step 2: Convert to fraction form
    769,872.80/1,154,809.20 = 237,346.40/x
  3. Step 3: Cross multiply
    769,872.80x = 1,154,809.20 × 237,346.40
  4. Step 4: Simplify right side
    769,872.80x = 274,089,806,306.88
  5. Step 5: Solve for x
    x = 274,089,806,306.88/769,872.80
  6. Step 6: Final answer
    x = 356,019.60

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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.