Home / 412,389.12-617,996.16-243,943.68

Finding the Fourth Proportional to 412,389.12, 617,996.16 and 243,943.68

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Solution

The fourth proportional to 412,389.12, 617,996.16 and 243,943.68 is: 365,567.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,389.12 : 617,996.16 = 243,943.68 : x
  2. Step 2: Convert to fraction form
    412,389.12/617,996.16 = 243,943.68/x
  3. Step 3: Cross multiply
    412,389.12x = 617,996.16 × 243,943.68
  4. Step 4: Simplify right side
    412,389.12x = 150,756,257,496.27
  5. Step 5: Solve for x
    x = 150,756,257,496.27/412,389.12
  6. Step 6: Final answer
    x = 365,567.98

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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.