Home / 820,871.70-1,231,307.55-504,302.10

Finding the Fourth Proportional to 820,871.70, 1,231,307.55 and 504,302.10

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Solution

The fourth proportional to 820,871.70, 1,231,307.55 and 504,302.10 is: 756,453.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,871.70 : 1,231,307.55 = 504,302.10 : x
  2. Step 2: Convert to fraction form
    820,871.70/1,231,307.55 = 504,302.10/x
  3. Step 3: Cross multiply
    820,871.70x = 1,231,307.55 × 504,302.10
  4. Step 4: Simplify right side
    820,871.70x = 620,950,983,210.86
  5. Step 5: Solve for x
    x = 620,950,983,210.86/820,871.70
  6. Step 6: Final answer
    x = 756,453.15

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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.