Home / 641,035.70-961,881.60-262,236.36

Finding the Fourth Proportional to 641,035.70, 961,881.60 and 262,236.36

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Solution

The fourth proportional to 641,035.70, 961,881.60 and 262,236.36 is: 393,488.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,035.70 : 961,881.60 = 262,236.36 : x
  2. Step 2: Convert to fraction form
    641,035.70/961,881.60 = 262,236.36/x
  3. Step 3: Cross multiply
    641,035.70x = 961,881.60 × 262,236.36
  4. Step 4: Simplify right side
    641,035.70x = 252,240,334,125.42
  5. Step 5: Solve for x
    x = 252,240,334,125.42/641,035.70
  6. Step 6: Final answer
    x = 393,488.75

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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.