Home / 696,265.75-961,161.49-438,521.50

Finding the Fourth Proportional to 696,265.75, 961,161.49 and 438,521.50

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Solution

The fourth proportional to 696,265.75, 961,161.49 and 438,521.50 is: 605,357.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,265.75 : 961,161.49 = 438,521.50 : x
  2. Step 2: Convert to fraction form
    696,265.75/961,161.49 = 438,521.50/x
  3. Step 3: Cross multiply
    696,265.75x = 961,161.49 × 438,521.50
  4. Step 4: Simplify right side
    696,265.75x = 421,489,978,337.04
  5. Step 5: Solve for x
    x = 421,489,978,337.04/696,265.75
  6. Step 6: Final answer
    x = 605,357.91

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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.