Home / 853,076.70-1,279,269.45-291,822.30

Finding the Fourth Proportional to 853,076.70, 1,279,269.45 and 291,822.30

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Solution

The fourth proportional to 853,076.70, 1,279,269.45 and 291,822.30 is: 437,615.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,076.70 : 1,279,269.45 = 291,822.30 : x
  2. Step 2: Convert to fraction form
    853,076.70/1,279,269.45 = 291,822.30/x
  3. Step 3: Cross multiply
    853,076.70x = 1,279,269.45 × 291,822.30
  4. Step 4: Simplify right side
    853,076.70x = 373,319,353,218.74
  5. Step 5: Solve for x
    x = 373,319,353,218.74/853,076.70
  6. Step 6: Final answer
    x = 437,615.23

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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.