Home / 729,203.08-1,006,149.78-419,045.56

Finding the Fourth Proportional to 729,203.08, 1,006,149.78 and 419,045.56

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Solution

The fourth proportional to 729,203.08, 1,006,149.78 and 419,045.56 is: 578,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,203.08 : 1,006,149.78 = 419,045.56 : x
  2. Step 2: Convert to fraction form
    729,203.08/1,006,149.78 = 419,045.56/x
  3. Step 3: Cross multiply
    729,203.08x = 1,006,149.78 × 419,045.56
  4. Step 4: Simplify right side
    729,203.08x = 421,622,598,003.98
  5. Step 5: Solve for x
    x = 421,622,598,003.98/729,203.08
  6. Step 6: Final answer
    x = 578,196.40

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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.