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Finding the Fourth Proportional to 641,759.44, 885,720.70 and 369,775.24

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Solution

The fourth proportional to 641,759.44, 885,720.70 and 369,775.24 is: 510,343.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,759.44 : 885,720.70 = 369,775.24 : x
  2. Step 2: Convert to fraction form
    641,759.44/885,720.70 = 369,775.24/x
  3. Step 3: Cross multiply
    641,759.44x = 885,720.70 × 369,775.24
  4. Step 4: Simplify right side
    641,759.44x = 327,517,584,415.47
  5. Step 5: Solve for x
    x = 327,517,584,415.47/641,759.44
  6. Step 6: Final answer
    x = 510,343.23

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1.5x scale

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.