Home / 877,231.80-1,315,847.70-667,279.80

Finding the Fourth Proportional to 877,231.80, 1,315,847.70 and 667,279.80

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Solution

The fourth proportional to 877,231.80, 1,315,847.70 and 667,279.80 is: 1,000,919.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,231.80 : 1,315,847.70 = 667,279.80 : x
  2. Step 2: Convert to fraction form
    877,231.80/1,315,847.70 = 667,279.80/x
  3. Step 3: Cross multiply
    877,231.80x = 1,315,847.70 × 667,279.80
  4. Step 4: Simplify right side
    877,231.80x = 878,038,590,086.46
  5. Step 5: Solve for x
    x = 878,038,590,086.46/877,231.80
  6. Step 6: Final answer
    x = 1,000,919.70

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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.