Home / 683,429.20-943,141.36-377,504.80

Finding the Fourth Proportional to 683,429.20, 943,141.36 and 377,504.80

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Solution

The fourth proportional to 683,429.20, 943,141.36 and 377,504.80 is: 520,961.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,429.20 : 943,141.36 = 377,504.80 : x
  2. Step 2: Convert to fraction form
    683,429.20/943,141.36 = 377,504.80/x
  3. Step 3: Cross multiply
    683,429.20x = 943,141.36 × 377,504.80
  4. Step 4: Simplify right side
    683,429.20x = 356,040,390,478.53
  5. Step 5: Solve for x
    x = 356,040,390,478.53/683,429.20
  6. Step 6: Final answer
    x = 520,961.63

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Double scale
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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.