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Finding the Fourth Proportional to 518,871.80, 778,599.30 and 282,231.02

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Solution

The fourth proportional to 518,871.80, 778,599.30 and 282,231.02 is: 423,505.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,871.80 : 778,599.30 = 282,231.02 : x
  2. Step 2: Convert to fraction form
    518,871.80/778,599.30 = 282,231.02/x
  3. Step 3: Cross multiply
    518,871.80x = 778,599.30 × 282,231.02
  4. Step 4: Simplify right side
    518,871.80x = 219,744,874,610.29
  5. Step 5: Solve for x
    x = 219,744,874,610.29/518,871.80
  6. Step 6: Final answer
    x = 423,505.14

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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.