Home / 1,421,077.70-2,131,633.46-396,345.69

Finding the Fourth Proportional to 1,421,077.70, 2,131,633.46 and 396,345.69

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Solution

The fourth proportional to 1,421,077.70, 2,131,633.46 and 396,345.69 is: 594,523.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,077.70 : 2,131,633.46 = 396,345.69 : x
  2. Step 2: Convert to fraction form
    1,421,077.70/2,131,633.46 = 396,345.69/x
  3. Step 3: Cross multiply
    1,421,077.70x = 2,131,633.46 × 396,345.69
  4. Step 4: Simplify right side
    1,421,077.70x = 844,863,735,521.65
  5. Step 5: Solve for x
    x = 844,863,735,521.65/1,421,077.70
  6. Step 6: Final answer
    x = 594,523.25

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Double scale
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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.