Home / 1,292,029.80-1,938,457.80-393,642.60

Finding the Fourth Proportional to 1,292,029.80, 1,938,457.80 and 393,642.60

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Solution

The fourth proportional to 1,292,029.80, 1,938,457.80 and 393,642.60 is: 590,589.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,029.80 : 1,938,457.80 = 393,642.60 : x
  2. Step 2: Convert to fraction form
    1,292,029.80/1,938,457.80 = 393,642.60/x
  3. Step 3: Cross multiply
    1,292,029.80x = 1,938,457.80 × 393,642.60
  4. Step 4: Simplify right side
    1,292,029.80x = 763,059,568,382.28
  5. Step 5: Solve for x
    x = 763,059,568,382.28/1,292,029.80
  6. Step 6: Final answer
    x = 590,589.76

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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.