Home / 987,143.82-1,480,715.93-356,057.57

Finding the Fourth Proportional to 987,143.82, 1,480,715.93 and 356,057.57

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Solution

The fourth proportional to 987,143.82, 1,480,715.93 and 356,057.57 is: 534,086.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,143.82 : 1,480,715.93 = 356,057.57 : x
  2. Step 2: Convert to fraction form
    987,143.82/1,480,715.93 = 356,057.57/x
  3. Step 3: Cross multiply
    987,143.82x = 1,480,715.93 × 356,057.57
  4. Step 4: Simplify right side
    987,143.82x = 527,220,106,712.22
  5. Step 5: Solve for x
    x = 527,220,106,712.22/987,143.82
  6. Step 6: Final answer
    x = 534,086.42

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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.