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Finding the Fourth Proportional to 641,601.46, 885,451.26 and 369,664.48

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Solution

The fourth proportional to 641,601.46, 885,451.26 and 369,664.48 is: 510,160.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,601.46 : 885,451.26 = 369,664.48 : x
  2. Step 2: Convert to fraction form
    641,601.46/885,451.26 = 369,664.48/x
  3. Step 3: Cross multiply
    641,601.46x = 885,451.26 × 369,664.48
  4. Step 4: Simplify right side
    641,601.46x = 327,319,879,593.25
  5. Step 5: Solve for x
    x = 327,319,879,593.25/641,601.46
  6. Step 6: Final answer
    x = 510,160.75

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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.