Home / 960,588.72-1,440,105.48-400,042.80

Finding the Fourth Proportional to 960,588.72, 1,440,105.48 and 400,042.80

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Solution

The fourth proportional to 960,588.72, 1,440,105.48 and 400,042.80 is: 599,740.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,588.72 : 1,440,105.48 = 400,042.80 : x
  2. Step 2: Convert to fraction form
    960,588.72/1,440,105.48 = 400,042.80/x
  3. Step 3: Cross multiply
    960,588.72x = 1,440,105.48 × 400,042.80
  4. Step 4: Simplify right side
    960,588.72x = 576,103,828,514.54
  5. Step 5: Solve for x
    x = 576,103,828,514.54/960,588.72
  6. Step 6: Final answer
    x = 599,740.36

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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.