Home / 1,431,399.59-1,974,507.81-858,106.70

Finding the Fourth Proportional to 1,431,399.59, 1,974,507.81 and 858,106.70

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Solution

The fourth proportional to 1,431,399.59, 1,974,507.81 and 858,106.70 is: 1,183,693.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,399.59 : 1,974,507.81 = 858,106.70 : x
  2. Step 2: Convert to fraction form
    1,431,399.59/1,974,507.81 = 858,106.70/x
  3. Step 3: Cross multiply
    1,431,399.59x = 1,974,507.81 × 858,106.70
  4. Step 4: Simplify right side
    1,431,399.59x = 1,694,338,380,963.33
  5. Step 5: Solve for x
    x = 1,694,338,380,963.33/1,431,399.59
  6. Step 6: Final answer
    x = 1,183,693.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.