Home / 729,162.88-1,006,094.55-419,005.56

Finding the Fourth Proportional to 729,162.88, 1,006,094.55 and 419,005.56

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Solution

The fourth proportional to 729,162.88, 1,006,094.55 and 419,005.56 is: 578,141.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,162.88 : 1,006,094.55 = 419,005.56 : x
  2. Step 2: Convert to fraction form
    729,162.88/1,006,094.55 = 419,005.56/x
  3. Step 3: Cross multiply
    729,162.88x = 1,006,094.55 × 419,005.56
  4. Step 4: Simplify right side
    729,162.88x = 421,559,210,335.70
  5. Step 5: Solve for x
    x = 421,559,210,335.70/729,162.88
  6. Step 6: Final answer
    x = 578,141.35

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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.