Home / 820,855.39-1,232,039.97-416,331.50

Finding the Fourth Proportional to 820,855.39, 1,232,039.97 and 416,331.50

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Solution

The fourth proportional to 820,855.39, 1,232,039.97 and 416,331.50 is: 624,881.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,855.39 : 1,232,039.97 = 416,331.50 : x
  2. Step 2: Convert to fraction form
    820,855.39/1,232,039.97 = 416,331.50/x
  3. Step 3: Cross multiply
    820,855.39x = 1,232,039.97 × 416,331.50
  4. Step 4: Simplify right side
    820,855.39x = 512,937,051,850.16
  5. Step 5: Solve for x
    x = 512,937,051,850.16/820,855.39
  6. Step 6: Final answer
    x = 624,881.14

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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.