Home / 642,250.23-886,267.40-351,804.03

Finding the Fourth Proportional to 642,250.23, 886,267.40 and 351,804.03

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Solution

The fourth proportional to 642,250.23, 886,267.40 and 351,804.03 is: 485,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,250.23 : 886,267.40 = 351,804.03 : x
  2. Step 2: Convert to fraction form
    642,250.23/886,267.40 = 351,804.03/x
  3. Step 3: Cross multiply
    642,250.23x = 886,267.40 × 351,804.03
  4. Step 4: Simplify right side
    642,250.23x = 311,792,441,218.60
  5. Step 5: Solve for x
    x = 311,792,441,218.60/642,250.23
  6. Step 6: Final answer
    x = 485,468.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.