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Finding the Fourth Proportional to 518,671.94, 777,820.68 and 219,175.64

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Solution

The fourth proportional to 518,671.94, 777,820.68 and 219,175.64 is: 328,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,671.94 : 777,820.68 = 219,175.64 : x
  2. Step 2: Convert to fraction form
    518,671.94/777,820.68 = 219,175.64/x
  3. Step 3: Cross multiply
    518,671.94x = 777,820.68 × 219,175.64
  4. Step 4: Simplify right side
    518,671.94x = 170,479,345,344.24
  5. Step 5: Solve for x
    x = 170,479,345,344.24/518,671.94
  6. Step 6: Final answer
    x = 328,684.34

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1.5x scale

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.