Home / 858,975.70-1,288,463.55-839,292.70

Finding the Fourth Proportional to 858,975.70, 1,288,463.55 and 839,292.70

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Solution

The fourth proportional to 858,975.70, 1,288,463.55 and 839,292.70 is: 1,258,939.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,975.70 : 1,288,463.55 = 839,292.70 : x
  2. Step 2: Convert to fraction form
    858,975.70/1,288,463.55 = 839,292.70/x
  3. Step 3: Cross multiply
    858,975.70x = 1,288,463.55 × 839,292.70
  4. Step 4: Simplify right side
    858,975.70x = 1,081,398,051,731.09
  5. Step 5: Solve for x
    x = 1,081,398,051,731.09/858,975.70
  6. Step 6: Final answer
    x = 1,258,939.05

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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.