Home / 680,947.40-1,021,639.80-301,721.60

Finding the Fourth Proportional to 680,947.40, 1,021,639.80 and 301,721.60

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Solution

The fourth proportional to 680,947.40, 1,021,639.80 and 301,721.60 is: 452,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,947.40 : 1,021,639.80 = 301,721.60 : x
  2. Step 2: Convert to fraction form
    680,947.40/1,021,639.80 = 301,721.60/x
  3. Step 3: Cross multiply
    680,947.40x = 1,021,639.80 × 301,721.60
  4. Step 4: Simplify right side
    680,947.40x = 308,250,795,079.68
  5. Step 5: Solve for x
    x = 308,250,795,079.68/680,947.40
  6. Step 6: Final answer
    x = 452,679.30

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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.