Home / 853,240.20-1,279,514.70-291,985.80

Finding the Fourth Proportional to 853,240.20, 1,279,514.70 and 291,985.80

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Solution

The fourth proportional to 853,240.20, 1,279,514.70 and 291,985.80 is: 437,860.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,240.20 : 1,279,514.70 = 291,985.80 : x
  2. Step 2: Convert to fraction form
    853,240.20/1,279,514.70 = 291,985.80/x
  3. Step 3: Cross multiply
    853,240.20x = 1,279,514.70 × 291,985.80
  4. Step 4: Simplify right side
    853,240.20x = 373,600,123,291.26
  5. Step 5: Solve for x
    x = 373,600,123,291.26/853,240.20
  6. Step 6: Final answer
    x = 437,860.43

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1.5x scale

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.