Home / 738,455.58-1,107,683.61-383,286.78

Finding the Fourth Proportional to 738,455.58, 1,107,683.61 and 383,286.78

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Solution

The fourth proportional to 738,455.58, 1,107,683.61 and 383,286.78 is: 574,930.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,455.58 : 1,107,683.61 = 383,286.78 : x
  2. Step 2: Convert to fraction form
    738,455.58/1,107,683.61 = 383,286.78/x
  3. Step 3: Cross multiply
    738,455.58x = 1,107,683.61 × 383,286.78
  4. Step 4: Simplify right side
    738,455.58x = 424,560,484,135.68
  5. Step 5: Solve for x
    x = 424,560,484,135.68/738,455.58
  6. Step 6: Final answer
    x = 574,930.29

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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.