Home / 695,603.40-1,042,022.70-399,769.80

Finding the Fourth Proportional to 695,603.40, 1,042,022.70 and 399,769.80

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Solution

The fourth proportional to 695,603.40, 1,042,022.70 and 399,769.80 is: 598,860.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,603.40 : 1,042,022.70 = 399,769.80 : x
  2. Step 2: Convert to fraction form
    695,603.40/1,042,022.70 = 399,769.80/x
  3. Step 3: Cross multiply
    695,603.40x = 1,042,022.70 × 399,769.80
  4. Step 4: Simplify right side
    695,603.40x = 416,569,206,374.46
  5. Step 5: Solve for x
    x = 416,569,206,374.46/695,603.40
  6. Step 6: Final answer
    x = 598,860.22

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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.