Home / 777,657.75-1,073,167.70-419,961.75

Finding the Fourth Proportional to 777,657.75, 1,073,167.70 and 419,961.75

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Solution

The fourth proportional to 777,657.75, 1,073,167.70 and 419,961.75 is: 579,547.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,657.75 : 1,073,167.70 = 419,961.75 : x
  2. Step 2: Convert to fraction form
    777,657.75/1,073,167.70 = 419,961.75/x
  3. Step 3: Cross multiply
    777,657.75x = 1,073,167.70 × 419,961.75
  4. Step 4: Simplify right side
    777,657.75x = 450,689,383,235.67
  5. Step 5: Solve for x
    x = 450,689,383,235.67/777,657.75
  6. Step 6: Final answer
    x = 579,547.22

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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.