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Finding the Fourth Proportional to 518,401.37, 777,485.39 and 185,977.37

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Solution

The fourth proportional to 518,401.37, 777,485.39 and 185,977.37 is: 278,924.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,401.37 : 777,485.39 = 185,977.37 : x
  2. Step 2: Convert to fraction form
    518,401.37/777,485.39 = 185,977.37/x
  3. Step 3: Cross multiply
    518,401.37x = 777,485.39 × 185,977.37
  4. Step 4: Simplify right side
    518,401.37x = 144,594,684,686.10
  5. Step 5: Solve for x
    x = 144,594,684,686.10/518,401.37
  6. Step 6: Final answer
    x = 278,924.20

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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.