Home / 852,939.34-1,279,851.81-347,870.86

Finding the Fourth Proportional to 852,939.34, 1,279,851.81 and 347,870.86

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Solution

The fourth proportional to 852,939.34, 1,279,851.81 and 347,870.86 is: 521,986.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,939.34 : 1,279,851.81 = 347,870.86 : x
  2. Step 2: Convert to fraction form
    852,939.34/1,279,851.81 = 347,870.86/x
  3. Step 3: Cross multiply
    852,939.34x = 1,279,851.81 × 347,870.86
  4. Step 4: Simplify right side
    852,939.34x = 445,223,149,817.26
  5. Step 5: Solve for x
    x = 445,223,149,817.26/852,939.34
  6. Step 6: Final answer
    x = 521,986.89

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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.