Home / 2,176,823.40-3,264,380.70-828,269.80

Finding the Fourth Proportional to 2,176,823.40, 3,264,380.70 and 828,269.80

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Solution

The fourth proportional to 2,176,823.40, 3,264,380.70 and 828,269.80 is: 1,242,079.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176,823.40 : 3,264,380.70 = 828,269.80 : x
  2. Step 2: Convert to fraction form
    2,176,823.40/3,264,380.70 = 828,269.80/x
  3. Step 3: Cross multiply
    2,176,823.40x = 3,264,380.70 × 828,269.80
  4. Step 4: Simplify right side
    2,176,823.40x = 2,703,787,949,512.86
  5. Step 5: Solve for x
    x = 2,703,787,949,512.86/2,176,823.40
  6. Step 6: Final answer
    x = 1,242,079.61

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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.