Home / 858,114.95-1,287,380.52-259,040.34

Finding the Fourth Proportional to 858,114.95, 1,287,380.52 and 259,040.34

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Solution

The fourth proportional to 858,114.95, 1,287,380.52 and 259,040.34 is: 388,623.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,114.95 : 1,287,380.52 = 259,040.34 : x
  2. Step 2: Convert to fraction form
    858,114.95/1,287,380.52 = 259,040.34/x
  3. Step 3: Cross multiply
    858,114.95x = 1,287,380.52 × 259,040.34
  4. Step 4: Simplify right side
    858,114.95x = 333,483,487,610.18
  5. Step 5: Solve for x
    x = 333,483,487,610.18/858,114.95
  6. Step 6: Final answer
    x = 388,623.33

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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.