Home / 2,688,947.60-4,033,421.40-1,193,190.80

Finding the Fourth Proportional to 2,688,947.60, 4,033,421.40 and 1,193,190.80

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Solution

The fourth proportional to 2,688,947.60, 4,033,421.40 and 1,193,190.80 is: 1,789,786.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,947.60 : 4,033,421.40 = 1,193,190.80 : x
  2. Step 2: Convert to fraction form
    2,688,947.60/4,033,421.40 = 1,193,190.80/x
  3. Step 3: Cross multiply
    2,688,947.60x = 4,033,421.40 × 1,193,190.80
  4. Step 4: Simplify right side
    2,688,947.60x = 4,812,641,307,003.12
  5. Step 5: Solve for x
    x = 4,812,641,307,003.12/2,688,947.60
  6. Step 6: Final answer
    x = 1,789,786.20

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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.