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Finding the Fourth Proportional to 518,654.35, 777,794.49 and 219,158.14

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Solution

The fourth proportional to 518,654.35, 777,794.49 and 219,158.14 is: 328,658.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,654.35 : 777,794.49 = 219,158.14 : x
  2. Step 2: Convert to fraction form
    518,654.35/777,794.49 = 219,158.14/x
  3. Step 3: Cross multiply
    518,654.35x = 777,794.49 × 219,158.14
  4. Step 4: Simplify right side
    518,654.35x = 170,459,993,730.65
  5. Step 5: Solve for x
    x = 170,459,993,730.65/518,654.35
  6. Step 6: Final answer
    x = 328,658.18

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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.