Home / 725,769.90-1,087,342.65-620,793.90

Finding the Fourth Proportional to 725,769.90, 1,087,342.65 and 620,793.90

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Solution

The fourth proportional to 725,769.90, 1,087,342.65 and 620,793.90 is: 930,068.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,769.90 : 1,087,342.65 = 620,793.90 : x
  2. Step 2: Convert to fraction form
    725,769.90/1,087,342.65 = 620,793.90/x
  3. Step 3: Cross multiply
    725,769.90x = 1,087,342.65 × 620,793.90
  4. Step 4: Simplify right side
    725,769.90x = 675,015,684,329.84
  5. Step 5: Solve for x
    x = 675,015,684,329.84/725,769.90
  6. Step 6: Final answer
    x = 930,068.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.