Home / 1,388,832.48-2,083,320-391,638.24

Finding the Fourth Proportional to 1,388,832.48, 2,083,320 and 391,638.24

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Solution

The fourth proportional to 1,388,832.48, 2,083,320 and 391,638.24 is: 587,477.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,832.48 : 2,083,320 = 391,638.24 : x
  2. Step 2: Convert to fraction form
    1,388,832.48/2,083,320 = 391,638.24/x
  3. Step 3: Cross multiply
    1,388,832.48x = 2,083,320 × 391,638.24
  4. Step 4: Simplify right side
    1,388,832.48x = 815,907,778,156.80
  5. Step 5: Solve for x
    x = 815,907,778,156.80/1,388,832.48
  6. Step 6: Final answer
    x = 587,477.46

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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.