Home / 853,477.32-1,279,836.90-454,033.92

Finding the Fourth Proportional to 853,477.32, 1,279,836.90 and 454,033.92

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Solution

The fourth proportional to 853,477.32, 1,279,836.90 and 454,033.92 is: 680,849.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,477.32 : 1,279,836.90 = 454,033.92 : x
  2. Step 2: Convert to fraction form
    853,477.32/1,279,836.90 = 454,033.92/x
  3. Step 3: Cross multiply
    853,477.32x = 1,279,836.90 × 454,033.92
  4. Step 4: Simplify right side
    853,477.32x = 581,089,364,667.65
  5. Step 5: Solve for x
    x = 581,089,364,667.65/853,477.32
  6. Step 6: Final answer
    x = 680,849.22

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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.