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Finding the Fourth Proportional to 978,340.80, 1,467,511.20 and 801,193.80

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Solution

The fourth proportional to 978,340.80, 1,467,511.20 and 801,193.80 is: 1,201,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,340.80 : 1,467,511.20 = 801,193.80 : x
  2. Step 2: Convert to fraction form
    978,340.80/1,467,511.20 = 801,193.80/x
  3. Step 3: Cross multiply
    978,340.80x = 1,467,511.20 × 801,193.80
  4. Step 4: Simplify right side
    978,340.80x = 1,175,760,874,870.56
  5. Step 5: Solve for x
    x = 1,175,760,874,870.56/978,340.80
  6. Step 6: Final answer
    x = 1,201,790.70

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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.