Home / 1,083,420.80-1,625,390.40-521,993.60

Finding the Fourth Proportional to 1,083,420.80, 1,625,390.40 and 521,993.60

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Solution

The fourth proportional to 1,083,420.80, 1,625,390.40 and 521,993.60 is: 783,115.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,083,420.80 : 1,625,390.40 = 521,993.60 : x
  2. Step 2: Convert to fraction form
    1,083,420.80/1,625,390.40 = 521,993.60/x
  3. Step 3: Cross multiply
    1,083,420.80x = 1,625,390.40 × 521,993.60
  4. Step 4: Simplify right side
    1,083,420.80x = 848,443,386,301.44
  5. Step 5: Solve for x
    x = 848,443,386,301.44/1,083,420.80
  6. Step 6: Final answer
    x = 783,115.28

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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.