Home / 820,179.30-1,230,268.95-731,605.80

Finding the Fourth Proportional to 820,179.30, 1,230,268.95 and 731,605.80

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Solution

The fourth proportional to 820,179.30, 1,230,268.95 and 731,605.80 is: 1,097,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,179.30 : 1,230,268.95 = 731,605.80 : x
  2. Step 2: Convert to fraction form
    820,179.30/1,230,268.95 = 731,605.80/x
  3. Step 3: Cross multiply
    820,179.30x = 1,230,268.95 × 731,605.80
  4. Step 4: Simplify right side
    820,179.30x = 900,071,899,379.91
  5. Step 5: Solve for x
    x = 900,071,899,379.91/820,179.30
  6. Step 6: Final answer
    x = 1,097,408.70

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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.