Home / 820,661.07-1,233,156.48-441,861.87

Finding the Fourth Proportional to 820,661.07, 1,233,156.48 and 441,861.87

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Solution

The fourth proportional to 820,661.07, 1,233,156.48 and 441,861.87 is: 663,958.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,661.07 : 1,233,156.48 = 441,861.87 : x
  2. Step 2: Convert to fraction form
    820,661.07/1,233,156.48 = 441,861.87/x
  3. Step 3: Cross multiply
    820,661.07x = 1,233,156.48 × 441,861.87
  4. Step 4: Simplify right side
    820,661.07x = 544,884,828,255.42
  5. Step 5: Solve for x
    x = 544,884,828,255.42/820,661.07
  6. Step 6: Final answer
    x = 663,958.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.