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Finding the Fourth Proportional to 518,884.65, 778,326.98 and 219,287.52

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Solution

The fourth proportional to 518,884.65, 778,326.98 and 219,287.52 is: 328,931.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,884.65 : 778,326.98 = 219,287.52 : x
  2. Step 2: Convert to fraction form
    518,884.65/778,326.98 = 219,287.52/x
  3. Step 3: Cross multiply
    518,884.65x = 778,326.98 × 219,287.52
  4. Step 4: Simplify right side
    518,884.65x = 170,677,392,096.85
  5. Step 5: Solve for x
    x = 170,677,392,096.85/518,884.65
  6. Step 6: Final answer
    x = 328,931.28

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Similar ratio
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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.