Home / 800,776.83-1,105,093.70-490,674.03

Finding the Fourth Proportional to 800,776.83, 1,105,093.70 and 490,674.03

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Solution

The fourth proportional to 800,776.83, 1,105,093.70 and 490,674.03 is: 677,143.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,776.83 : 1,105,093.70 = 490,674.03 : x
  2. Step 2: Convert to fraction form
    800,776.83/1,105,093.70 = 490,674.03/x
  3. Step 3: Cross multiply
    800,776.83x = 1,105,093.70 × 490,674.03
  4. Step 4: Simplify right side
    800,776.83x = 542,240,779,306.61
  5. Step 5: Solve for x
    x = 542,240,779,306.61/800,776.83
  6. Step 6: Final answer
    x = 677,143.44

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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.