Home / 729,171.72-1,006,106.73-419,014.41

Finding the Fourth Proportional to 729,171.72, 1,006,106.73 and 419,014.41

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Solution

The fourth proportional to 729,171.72, 1,006,106.73 and 419,014.41 is: 578,153.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,171.72 : 1,006,106.73 = 419,014.41 : x
  2. Step 2: Convert to fraction form
    729,171.72/1,006,106.73 = 419,014.41/x
  3. Step 3: Cross multiply
    729,171.72x = 1,006,106.73 × 419,014.41
  4. Step 4: Simplify right side
    729,171.72x = 421,573,217,867.98
  5. Step 5: Solve for x
    x = 421,573,217,867.98/729,171.72
  6. Step 6: Final answer
    x = 578,153.55

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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.