Home / 724,400.55-1,087,315.97-543,858.03

Finding the Fourth Proportional to 724,400.55, 1,087,315.97 and 543,858.03

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Solution

The fourth proportional to 724,400.55, 1,087,315.97 and 543,858.03 is: 816,323.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,400.55 : 1,087,315.97 = 543,858.03 : x
  2. Step 2: Convert to fraction form
    724,400.55/1,087,315.97 = 543,858.03/x
  3. Step 3: Cross multiply
    724,400.55x = 1,087,315.97 × 543,858.03
  4. Step 4: Simplify right side
    724,400.55x = 591,345,518,712.45
  5. Step 5: Solve for x
    x = 591,345,518,712.45/724,400.55
  6. Step 6: Final answer
    x = 816,323.95

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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.