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Finding the Fourth Proportional to 518,849.65, 777,542.90 and 245,003.67

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Solution

The fourth proportional to 518,849.65, 777,542.90 and 245,003.67 is: 367,160.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,849.65 : 777,542.90 = 245,003.67 : x
  2. Step 2: Convert to fraction form
    518,849.65/777,542.90 = 245,003.67/x
  3. Step 3: Cross multiply
    518,849.65x = 777,542.90 × 245,003.67
  4. Step 4: Simplify right side
    518,849.65x = 190,500,862,857.43
  5. Step 5: Solve for x
    x = 190,500,862,857.43/518,849.65
  6. Step 6: Final answer
    x = 367,160.05

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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.