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Finding the Fourth Proportional to 518,529.60, 777,794.40 and 144,552.60

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Solution

The fourth proportional to 518,529.60, 777,794.40 and 144,552.60 is: 216,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,529.60 : 777,794.40 = 144,552.60 : x
  2. Step 2: Convert to fraction form
    518,529.60/777,794.40 = 144,552.60/x
  3. Step 3: Cross multiply
    518,529.60x = 777,794.40 × 144,552.60
  4. Step 4: Simplify right side
    518,529.60x = 112,432,202,785.44
  5. Step 5: Solve for x
    x = 112,432,202,785.44/518,529.60
  6. Step 6: Final answer
    x = 216,828.90

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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.