Home / 683,431.20-943,144.12-377,506.80

Finding the Fourth Proportional to 683,431.20, 943,144.12 and 377,506.80

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Solution

The fourth proportional to 683,431.20, 943,144.12 and 377,506.80 is: 520,964.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,431.20 : 943,144.12 = 377,506.80 : x
  2. Step 2: Convert to fraction form
    683,431.20/943,144.12 = 377,506.80/x
  3. Step 3: Cross multiply
    683,431.20x = 943,144.12 × 377,506.80
  4. Step 4: Simplify right side
    683,431.20x = 356,043,318,680.02
  5. Step 5: Solve for x
    x = 356,043,318,680.02/683,431.20
  6. Step 6: Final answer
    x = 520,964.39

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.