Home / 641,962.20-885,896.92-355,476.13

Finding the Fourth Proportional to 641,962.20, 885,896.92 and 355,476.13

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Solution

The fourth proportional to 641,962.20, 885,896.92 and 355,476.13 is: 490,551.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,962.20 : 885,896.92 = 355,476.13 : x
  2. Step 2: Convert to fraction form
    641,962.20/885,896.92 = 355,476.13/x
  3. Step 3: Cross multiply
    641,962.20x = 885,896.92 × 355,476.13
  4. Step 4: Simplify right side
    641,962.20x = 314,915,208,700.52
  5. Step 5: Solve for x
    x = 314,915,208,700.52/641,962.20
  6. Step 6: Final answer
    x = 490,551.01

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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.