Home / 858,125.94-1,287,397.02-259,051.34

Finding the Fourth Proportional to 858,125.94, 1,287,397.02 and 259,051.34

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Solution

The fourth proportional to 858,125.94, 1,287,397.02 and 259,051.34 is: 388,639.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,125.94 : 1,287,397.02 = 259,051.34 : x
  2. Step 2: Convert to fraction form
    858,125.94/1,287,397.02 = 259,051.34/x
  3. Step 3: Cross multiply
    858,125.94x = 1,287,397.02 × 259,051.34
  4. Step 4: Simplify right side
    858,125.94x = 333,501,923,143.01
  5. Step 5: Solve for x
    x = 333,501,923,143.01/858,125.94
  6. Step 6: Final answer
    x = 388,639.83

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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.