Home / 1,407,990.35-2,111,879.36-448,407.20

Finding the Fourth Proportional to 1,407,990.35, 2,111,879.36 and 448,407.20

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Solution

The fourth proportional to 1,407,990.35, 2,111,879.36 and 448,407.20 is: 672,576.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,990.35 : 2,111,879.36 = 448,407.20 : x
  2. Step 2: Convert to fraction form
    1,407,990.35/2,111,879.36 = 448,407.20/x
  3. Step 3: Cross multiply
    1,407,990.35x = 2,111,879.36 × 448,407.20
  4. Step 4: Simplify right side
    1,407,990.35x = 946,981,897,753.96
  5. Step 5: Solve for x
    x = 946,981,897,753.96/1,407,990.35
  6. Step 6: Final answer
    x = 672,576.98

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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.