Home / 3,280,982.40-4,921,473.60-2,079,007.20

Finding the Fourth Proportional to 3,280,982.40, 4,921,473.60 and 2,079,007.20

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Solution

The fourth proportional to 3,280,982.40, 4,921,473.60 and 2,079,007.20 is: 3,118,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,982.40 : 4,921,473.60 = 2,079,007.20 : x
  2. Step 2: Convert to fraction form
    3,280,982.40/4,921,473.60 = 2,079,007.20/x
  3. Step 3: Cross multiply
    3,280,982.40x = 4,921,473.60 × 2,079,007.20
  4. Step 4: Simplify right side
    3,280,982.40x = 10,231,779,049,009.92
  5. Step 5: Solve for x
    x = 10,231,779,049,009.92/3,280,982.40
  6. Step 6: Final answer
    x = 3,118,510.80

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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.