Home / 1,724,220.90-2,586,329.74-813,190.80

Finding the Fourth Proportional to 1,724,220.90, 2,586,329.74 and 813,190.80

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Solution

The fourth proportional to 1,724,220.90, 2,586,329.74 and 813,190.80 is: 1,219,785.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724,220.90 : 2,586,329.74 = 813,190.80 : x
  2. Step 2: Convert to fraction form
    1,724,220.90/2,586,329.74 = 813,190.80/x
  3. Step 3: Cross multiply
    1,724,220.90x = 2,586,329.74 × 813,190.80
  4. Step 4: Simplify right side
    1,724,220.90x = 2,103,179,550,334.39
  5. Step 5: Solve for x
    x = 2,103,179,550,334.39/1,724,220.90
  6. Step 6: Final answer
    x = 1,219,785.44

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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.