Home / 518,122.86-777,289.06-218,604.18

Finding the Fourth Proportional to 518,122.86, 777,289.06 and 218,604.18

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Solution

The fourth proportional to 518,122.86, 777,289.06 and 218,604.18 is: 327,950.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,122.86 : 777,289.06 = 218,604.18 : x
  2. Step 2: Convert to fraction form
    518,122.86/777,289.06 = 218,604.18/x
  3. Step 3: Cross multiply
    518,122.86x = 777,289.06 × 218,604.18
  4. Step 4: Simplify right side
    518,122.86x = 169,918,637,584.27
  5. Step 5: Solve for x
    x = 169,918,637,584.27/518,122.86
  6. Step 6: Final answer
    x = 327,950.47

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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.