Home / 987,161-1,480,741.71-356,074.75

Finding the Fourth Proportional to 987,161, 1,480,741.71 and 356,074.75

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Solution

The fourth proportional to 987,161, 1,480,741.71 and 356,074.75 is: 534,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,161 : 1,480,741.71 = 356,074.75 : x
  2. Step 2: Convert to fraction form
    987,161/1,480,741.71 = 356,074.75/x
  3. Step 3: Cross multiply
    987,161x = 1,480,741.71 × 356,074.75
  4. Step 4: Simplify right side
    987,161x = 527,254,734,202.82
  5. Step 5: Solve for x
    x = 527,254,734,202.82/987,161
  6. Step 6: Final answer
    x = 534,112.20

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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.