Home / 990,425.10-1,481,701.05-858,767.70

Finding the Fourth Proportional to 990,425.10, 1,481,701.05 and 858,767.70

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Solution

The fourth proportional to 990,425.10, 1,481,701.05 and 858,767.70 is: 1,284,738.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,425.10 : 1,481,701.05 = 858,767.70 : x
  2. Step 2: Convert to fraction form
    990,425.10/1,481,701.05 = 858,767.70/x
  3. Step 3: Cross multiply
    990,425.10x = 1,481,701.05 × 858,767.70
  4. Step 4: Simplify right side
    990,425.10x = 1,272,437,002,796.09
  5. Step 5: Solve for x
    x = 1,272,437,002,796.09/990,425.10
  6. Step 6: Final answer
    x = 1,284,738.24

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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.