Home / 755,301.45-1,042,339.48-411,160.30

Finding the Fourth Proportional to 755,301.45, 1,042,339.48 and 411,160.30

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Solution

The fourth proportional to 755,301.45, 1,042,339.48 and 411,160.30 is: 567,413.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,301.45 : 1,042,339.48 = 411,160.30 : x
  2. Step 2: Convert to fraction form
    755,301.45/1,042,339.48 = 411,160.30/x
  3. Step 3: Cross multiply
    755,301.45x = 1,042,339.48 × 411,160.30
  4. Step 4: Simplify right side
    755,301.45x = 428,568,609,664.90
  5. Step 5: Solve for x
    x = 428,568,609,664.90/755,301.45
  6. Step 6: Final answer
    x = 567,413.99

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.