Home / 878,467.80-1,317,701.70-579,286.20

Finding the Fourth Proportional to 878,467.80, 1,317,701.70 and 579,286.20

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Solution

The fourth proportional to 878,467.80, 1,317,701.70 and 579,286.20 is: 868,929.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,467.80 : 1,317,701.70 = 579,286.20 : x
  2. Step 2: Convert to fraction form
    878,467.80/1,317,701.70 = 579,286.20/x
  3. Step 3: Cross multiply
    878,467.80x = 1,317,701.70 × 579,286.20
  4. Step 4: Simplify right side
    878,467.80x = 763,326,410,526.54
  5. Step 5: Solve for x
    x = 763,326,410,526.54/878,467.80
  6. Step 6: Final answer
    x = 868,929.30

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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.