Home / 2,813,489.60-4,220,234.40-1,320,497.60

Finding the Fourth Proportional to 2,813,489.60, 4,220,234.40 and 1,320,497.60

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Solution

The fourth proportional to 2,813,489.60, 4,220,234.40 and 1,320,497.60 is: 1,980,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813,489.60 : 4,220,234.40 = 1,320,497.60 : x
  2. Step 2: Convert to fraction form
    2,813,489.60/4,220,234.40 = 1,320,497.60/x
  3. Step 3: Cross multiply
    2,813,489.60x = 4,220,234.40 × 1,320,497.60
  4. Step 4: Simplify right side
    2,813,489.60x = 5,572,809,396,637.44
  5. Step 5: Solve for x
    x = 5,572,809,396,637.44/2,813,489.60
  6. Step 6: Final answer
    x = 1,980,746.40

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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.