Home / 728,187.64-1,004,952.22-422,368.49

Finding the Fourth Proportional to 728,187.64, 1,004,952.22 and 422,368.49

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Solution

The fourth proportional to 728,187.64, 1,004,952.22 and 422,368.49 is: 582,899.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,187.64 : 1,004,952.22 = 422,368.49 : x
  2. Step 2: Convert to fraction form
    728,187.64/1,004,952.22 = 422,368.49/x
  3. Step 3: Cross multiply
    728,187.64x = 1,004,952.22 × 422,368.49
  4. Step 4: Simplify right side
    728,187.64x = 424,460,153,140.01
  5. Step 5: Solve for x
    x = 424,460,153,140.01/728,187.64
  6. Step 6: Final answer
    x = 582,899.42

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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.