Home / 853,224.20-1,279,490.70-291,969.80

Finding the Fourth Proportional to 853,224.20, 1,279,490.70 and 291,969.80

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Solution

The fourth proportional to 853,224.20, 1,279,490.70 and 291,969.80 is: 437,836.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,224.20 : 1,279,490.70 = 291,969.80 : x
  2. Step 2: Convert to fraction form
    853,224.20/1,279,490.70 = 291,969.80/x
  3. Step 3: Cross multiply
    853,224.20x = 1,279,490.70 × 291,969.80
  4. Step 4: Simplify right side
    853,224.20x = 373,572,643,780.86
  5. Step 5: Solve for x
    x = 373,572,643,780.86/853,224.20
  6. Step 6: Final answer
    x = 437,836.44

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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.