Home / 838,093.80-1,257,140.70-305,632.20

Finding the Fourth Proportional to 838,093.80, 1,257,140.70 and 305,632.20

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Solution

The fourth proportional to 838,093.80, 1,257,140.70 and 305,632.20 is: 458,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,093.80 : 1,257,140.70 = 305,632.20 : x
  2. Step 2: Convert to fraction form
    838,093.80/1,257,140.70 = 305,632.20/x
  3. Step 3: Cross multiply
    838,093.80x = 1,257,140.70 × 305,632.20
  4. Step 4: Simplify right side
    838,093.80x = 384,222,677,850.54
  5. Step 5: Solve for x
    x = 384,222,677,850.54/838,093.80
  6. Step 6: Final answer
    x = 458,448.30

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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.