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Finding the Fourth Proportional to 518,568.64, 777,859.20 and 144,568.96

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Solution

The fourth proportional to 518,568.64, 777,859.20 and 144,568.96 is: 216,855.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,568.64 : 777,859.20 = 144,568.96 : x
  2. Step 2: Convert to fraction form
    518,568.64/777,859.20 = 144,568.96/x
  3. Step 3: Cross multiply
    518,568.64x = 777,859.20 × 144,568.96
  4. Step 4: Simplify right side
    518,568.64x = 112,454,295,570.43
  5. Step 5: Solve for x
    x = 112,454,295,570.43/518,568.64
  6. Step 6: Final answer
    x = 216,855.18

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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.