Home / 708,112.45-1,062,611.54-287,388.33

Finding the Fourth Proportional to 708,112.45, 1,062,611.54 and 287,388.33

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Solution

The fourth proportional to 708,112.45, 1,062,611.54 and 287,388.33 is: 431,262.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,112.45 : 1,062,611.54 = 287,388.33 : x
  2. Step 2: Convert to fraction form
    708,112.45/1,062,611.54 = 287,388.33/x
  3. Step 3: Cross multiply
    708,112.45x = 1,062,611.54 × 287,388.33
  4. Step 4: Simplify right side
    708,112.45x = 305,382,155,919.33
  5. Step 5: Solve for x
    x = 305,382,155,919.33/708,112.45
  6. Step 6: Final answer
    x = 431,262.23

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1.5x scale

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.