Home / 858,180.15-1,287,279.95-259,146.27

Finding the Fourth Proportional to 858,180.15, 1,287,279.95 and 259,146.27

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Solution

The fourth proportional to 858,180.15, 1,287,279.95 and 259,146.27 is: 388,722.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,180.15 : 1,287,279.95 = 259,146.27 : x
  2. Step 2: Convert to fraction form
    858,180.15/1,287,279.95 = 259,146.27/x
  3. Step 3: Cross multiply
    858,180.15x = 1,287,279.95 × 259,146.27
  4. Step 4: Simplify right side
    858,180.15x = 333,593,796,192.56
  5. Step 5: Solve for x
    x = 333,593,796,192.56/858,180.15
  6. Step 6: Final answer
    x = 388,722.34

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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.