Home / 728,913.06-1,006,010.82-442,377.72

Finding the Fourth Proportional to 728,913.06, 1,006,010.82 and 442,377.72

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Solution

The fourth proportional to 728,913.06, 1,006,010.82 and 442,377.72 is: 610,548.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,913.06 : 1,006,010.82 = 442,377.72 : x
  2. Step 2: Convert to fraction form
    728,913.06/1,006,010.82 = 442,377.72/x
  3. Step 3: Cross multiply
    728,913.06x = 1,006,010.82 × 442,377.72
  4. Step 4: Simplify right side
    728,913.06x = 445,036,772,846.93
  5. Step 5: Solve for x
    x = 445,036,772,846.93/728,913.06
  6. Step 6: Final answer
    x = 610,548.50

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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.