Home / 2,970,409.20-4,455,176.40-840,708.60

Finding the Fourth Proportional to 2,970,409.20, 4,455,176.40 and 840,708.60

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Solution

The fourth proportional to 2,970,409.20, 4,455,176.40 and 840,708.60 is: 1,260,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970,409.20 : 4,455,176.40 = 840,708.60 : x
  2. Step 2: Convert to fraction form
    2,970,409.20/4,455,176.40 = 840,708.60/x
  3. Step 3: Cross multiply
    2,970,409.20x = 4,455,176.40 × 840,708.60
  4. Step 4: Simplify right side
    2,970,409.20x = 3,745,505,113,997.04
  5. Step 5: Solve for x
    x = 3,745,505,113,997.04/2,970,409.20
  6. Step 6: Final answer
    x = 1,260,939.10

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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.