Home / 987,355.12-1,481,083.40-277,438.52

Finding the Fourth Proportional to 987,355.12, 1,481,083.40 and 277,438.52

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Solution

The fourth proportional to 987,355.12, 1,481,083.40 and 277,438.52 is: 416,172.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,355.12 : 1,481,083.40 = 277,438.52 : x
  2. Step 2: Convert to fraction form
    987,355.12/1,481,083.40 = 277,438.52/x
  3. Step 3: Cross multiply
    987,355.12x = 1,481,083.40 × 277,438.52
  4. Step 4: Simplify right side
    987,355.12x = 410,909,586,492.57
  5. Step 5: Solve for x
    x = 410,909,586,492.57/987,355.12
  6. Step 6: Final answer
    x = 416,172.03

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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.