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Finding the Fourth Proportional to 576,077.64, 794,986.64 and 321,428.82

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Solution

The fourth proportional to 576,077.64, 794,986.64 and 321,428.82 is: 443,571.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,077.64 : 794,986.64 = 321,428.82 : x
  2. Step 2: Convert to fraction form
    576,077.64/794,986.64 = 321,428.82/x
  3. Step 3: Cross multiply
    576,077.64x = 794,986.64 × 321,428.82
  4. Step 4: Simplify right side
    576,077.64x = 255,531,617,610.97
  5. Step 5: Solve for x
    x = 255,531,617,610.97/576,077.64
  6. Step 6: Final answer
    x = 443,571.49

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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.