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Finding the Fourth Proportional to 641,726.31, 885,592.80 and 351,333.03

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Solution

The fourth proportional to 641,726.31, 885,592.80 and 351,333.03 is: 484,845.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,726.31 : 885,592.80 = 351,333.03 : x
  2. Step 2: Convert to fraction form
    641,726.31/885,592.80 = 351,333.03/x
  3. Step 3: Cross multiply
    641,726.31x = 885,592.80 × 351,333.03
  4. Step 4: Simplify right side
    641,726.31x = 311,138,005,091.16
  5. Step 5: Solve for x
    x = 311,138,005,091.16/641,726.31
  6. Step 6: Final answer
    x = 484,845.33

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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.