Home / 729,160.25-1,006,090.92-419,002.92

Finding the Fourth Proportional to 729,160.25, 1,006,090.92 and 419,002.92

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Solution

The fourth proportional to 729,160.25, 1,006,090.92 and 419,002.92 is: 578,137.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,160.25 : 1,006,090.92 = 419,002.92 : x
  2. Step 2: Convert to fraction form
    729,160.25/1,006,090.92 = 419,002.92/x
  3. Step 3: Cross multiply
    729,160.25x = 1,006,090.92 × 419,002.92
  4. Step 4: Simplify right side
    729,160.25x = 421,555,033,265.49
  5. Step 5: Solve for x
    x = 421,555,033,265.49/729,160.25
  6. Step 6: Final answer
    x = 578,137.71

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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.