Home / 987,159-1,480,738.71-356,072.75

Finding the Fourth Proportional to 987,159, 1,480,738.71 and 356,072.75

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Solution

The fourth proportional to 987,159, 1,480,738.71 and 356,072.75 is: 534,109.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,159 : 1,480,738.71 = 356,072.75 : x
  2. Step 2: Convert to fraction form
    987,159/1,480,738.71 = 356,072.75/x
  3. Step 3: Cross multiply
    987,159x = 1,480,738.71 × 356,072.75
  4. Step 4: Simplify right side
    987,159x = 527,250,695,317.10
  5. Step 5: Solve for x
    x = 527,250,695,317.10/987,159
  6. Step 6: Final answer
    x = 534,109.19

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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.