Home / 908,627.20-1,362,940.80-840,198.40

Finding the Fourth Proportional to 908,627.20, 1,362,940.80 and 840,198.40

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Solution

The fourth proportional to 908,627.20, 1,362,940.80 and 840,198.40 is: 1,260,297.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,627.20 : 1,362,940.80 = 840,198.40 : x
  2. Step 2: Convert to fraction form
    908,627.20/1,362,940.80 = 840,198.40/x
  3. Step 3: Cross multiply
    908,627.20x = 1,362,940.80 × 840,198.40
  4. Step 4: Simplify right side
    908,627.20x = 1,145,140,679,454.72
  5. Step 5: Solve for x
    x = 1,145,140,679,454.72/908,627.20
  6. Step 6: Final answer
    x = 1,260,297.60

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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.