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Finding the Fourth Proportional to 800,756.39, 1,105,040.81 and 433,232.32

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Solution

The fourth proportional to 800,756.39, 1,105,040.81 and 433,232.32 is: 597,858.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,756.39 : 1,105,040.81 = 433,232.32 : x
  2. Step 2: Convert to fraction form
    800,756.39/1,105,040.81 = 433,232.32/x
  3. Step 3: Cross multiply
    800,756.39x = 1,105,040.81 × 433,232.32
  4. Step 4: Simplify right side
    800,756.39x = 478,739,393,810.98
  5. Step 5: Solve for x
    x = 478,739,393,810.98/800,756.39
  6. Step 6: Final answer
    x = 597,858.97

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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.