Home / 915,183.38-1,372,344.78-338,408.16

Finding the Fourth Proportional to 915,183.38, 1,372,344.78 and 338,408.16

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Solution

The fourth proportional to 915,183.38, 1,372,344.78 and 338,408.16 is: 507,453.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,183.38 : 1,372,344.78 = 338,408.16 : x
  2. Step 2: Convert to fraction form
    915,183.38/1,372,344.78 = 338,408.16/x
  3. Step 3: Cross multiply
    915,183.38x = 1,372,344.78 × 338,408.16
  4. Step 4: Simplify right side
    915,183.38x = 464,412,671,885.41
  5. Step 5: Solve for x
    x = 464,412,671,885.41/915,183.38
  6. Step 6: Final answer
    x = 507,453.13

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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.