Home / 755,457.20-1,131,976.20-400,007.60

Finding the Fourth Proportional to 755,457.20, 1,131,976.20 and 400,007.60

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Solution

The fourth proportional to 755,457.20, 1,131,976.20 and 400,007.60 is: 599,370.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,457.20 : 1,131,976.20 = 400,007.60 : x
  2. Step 2: Convert to fraction form
    755,457.20/1,131,976.20 = 400,007.60/x
  3. Step 3: Cross multiply
    755,457.20x = 1,131,976.20 × 400,007.60
  4. Step 4: Simplify right side
    755,457.20x = 452,799,083,019.12
  5. Step 5: Solve for x
    x = 452,799,083,019.12/755,457.20
  6. Step 6: Final answer
    x = 599,370.93

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1.5x scale

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.