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Finding the Fourth Proportional to 641,524.43, 885,369.62 and 369,602.57

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Solution

The fourth proportional to 641,524.43, 885,369.62 and 369,602.57 is: 510,089.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,524.43 : 885,369.62 = 369,602.57 : x
  2. Step 2: Convert to fraction form
    641,524.43/885,369.62 = 369,602.57/x
  3. Step 3: Cross multiply
    641,524.43x = 885,369.62 × 369,602.57
  4. Step 4: Simplify right side
    641,524.43x = 327,234,886,951.92
  5. Step 5: Solve for x
    x = 327,234,886,951.92/641,524.43
  6. Step 6: Final answer
    x = 510,089.52

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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.