Home / 858,110.33-1,287,373.58-259,035.69

Finding the Fourth Proportional to 858,110.33, 1,287,373.58 and 259,035.69

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Solution

The fourth proportional to 858,110.33, 1,287,373.58 and 259,035.69 is: 388,616.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,110.33 : 1,287,373.58 = 259,035.69 : x
  2. Step 2: Convert to fraction form
    858,110.33/1,287,373.58 = 259,035.69/x
  3. Step 3: Cross multiply
    858,110.33x = 1,287,373.58 × 259,035.69
  4. Step 4: Simplify right side
    858,110.33x = 333,475,703,583.07
  5. Step 5: Solve for x
    x = 333,475,703,583.07/858,110.33
  6. Step 6: Final answer
    x = 388,616.35

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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.