Home / 858,983.70-1,288,475.55-839,300.70

Finding the Fourth Proportional to 858,983.70, 1,288,475.55 and 839,300.70

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Solution

The fourth proportional to 858,983.70, 1,288,475.55 and 839,300.70 is: 1,258,951.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,983.70 : 1,288,475.55 = 839,300.70 : x
  2. Step 2: Convert to fraction form
    858,983.70/1,288,475.55 = 839,300.70/x
  3. Step 3: Cross multiply
    858,983.70x = 1,288,475.55 × 839,300.70
  4. Step 4: Simplify right side
    858,983.70x = 1,081,418,431,047.89
  5. Step 5: Solve for x
    x = 1,081,418,431,047.89/858,983.70
  6. Step 6: Final answer
    x = 1,258,951.05

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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.