Home / 961,563.88-1,441,952.16-428,720.50

Finding the Fourth Proportional to 961,563.88, 1,441,952.16 and 428,720.50

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Solution

The fourth proportional to 961,563.88, 1,441,952.16 and 428,720.50 is: 642,905.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,563.88 : 1,441,952.16 = 428,720.50 : x
  2. Step 2: Convert to fraction form
    961,563.88/1,441,952.16 = 428,720.50/x
  3. Step 3: Cross multiply
    961,563.88x = 1,441,952.16 × 428,720.50
  4. Step 4: Simplify right side
    961,563.88x = 618,194,451,011.28
  5. Step 5: Solve for x
    x = 618,194,451,011.28/961,563.88
  6. Step 6: Final answer
    x = 642,905.23

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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.