Home / 486,110.49-670,732.30-279,338.94

Finding the Fourth Proportional to 486,110.49, 670,732.30 and 279,338.94

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Solution

The fourth proportional to 486,110.49, 670,732.30 and 279,338.94 is: 385,430.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,110.49 : 670,732.30 = 279,338.94 : x
  2. Step 2: Convert to fraction form
    486,110.49/670,732.30 = 279,338.94/x
  3. Step 3: Cross multiply
    486,110.49x = 670,732.30 × 279,338.94
  4. Step 4: Simplify right side
    486,110.49x = 187,361,651,194.57
  5. Step 5: Solve for x
    x = 187,361,651,194.57/486,110.49
  6. Step 6: Final answer
    x = 385,430.18

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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.