Home / 698,768.82-1,048,425.39-278,087.22

Finding the Fourth Proportional to 698,768.82, 1,048,425.39 and 278,087.22

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Solution

The fourth proportional to 698,768.82, 1,048,425.39 and 278,087.22 is: 417,239.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,768.82 : 1,048,425.39 = 278,087.22 : x
  2. Step 2: Convert to fraction form
    698,768.82/1,048,425.39 = 278,087.22/x
  3. Step 3: Cross multiply
    698,768.82x = 1,048,425.39 × 278,087.22
  4. Step 4: Simplify right side
    698,768.82x = 291,553,702,082.52
  5. Step 5: Solve for x
    x = 291,553,702,082.52/698,768.82
  6. Step 6: Final answer
    x = 417,239.14

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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.