Home / 680,628.87-1,019,159.69-479,862.27

Finding the Fourth Proportional to 680,628.87, 1,019,159.69 and 479,862.27

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Solution

The fourth proportional to 680,628.87, 1,019,159.69 and 479,862.27 is: 718,535.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,628.87 : 1,019,159.69 = 479,862.27 : x
  2. Step 2: Convert to fraction form
    680,628.87/1,019,159.69 = 479,862.27/x
  3. Step 3: Cross multiply
    680,628.87x = 1,019,159.69 × 479,862.27
  4. Step 4: Simplify right side
    680,628.87x = 489,056,279,936.59
  5. Step 5: Solve for x
    x = 489,056,279,936.59/680,628.87
  6. Step 6: Final answer
    x = 718,535.90

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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.