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Finding the Fourth Proportional to 800,755.61, 1,105,039.73 and 433,231.55

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Solution

The fourth proportional to 800,755.61, 1,105,039.73 and 433,231.55 is: 597,857.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,755.61 : 1,105,039.73 = 433,231.55 : x
  2. Step 2: Convert to fraction form
    800,755.61/1,105,039.73 = 433,231.55/x
  3. Step 3: Cross multiply
    800,755.61x = 1,105,039.73 × 433,231.55
  4. Step 4: Simplify right side
    800,755.61x = 478,738,080,957.11
  5. Step 5: Solve for x
    x = 478,738,080,957.11/800,755.61
  6. Step 6: Final answer
    x = 597,857.92

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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.