Home / 961,564.88-1,441,953.66-428,721.50

Finding the Fourth Proportional to 961,564.88, 1,441,953.66 and 428,721.50

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Solution

The fourth proportional to 961,564.88, 1,441,953.66 and 428,721.50 is: 642,906.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,564.88 : 1,441,953.66 = 428,721.50 : x
  2. Step 2: Convert to fraction form
    961,564.88/1,441,953.66 = 428,721.50/x
  3. Step 3: Cross multiply
    961,564.88x = 1,441,953.66 × 428,721.50
  4. Step 4: Simplify right side
    961,564.88x = 618,196,536,045.69
  5. Step 5: Solve for x
    x = 618,196,536,045.69/961,564.88
  6. Step 6: Final answer
    x = 642,906.73

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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.