Home / 987,940.80-1,481,911.20-356,875.20

Finding the Fourth Proportional to 987,940.80, 1,481,911.20 and 356,875.20

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Solution

The fourth proportional to 987,940.80, 1,481,911.20 and 356,875.20 is: 535,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,940.80 : 1,481,911.20 = 356,875.20 : x
  2. Step 2: Convert to fraction form
    987,940.80/1,481,911.20 = 356,875.20/x
  3. Step 3: Cross multiply
    987,940.80x = 1,481,911.20 × 356,875.20
  4. Step 4: Simplify right side
    987,940.80x = 528,857,355,882.24
  5. Step 5: Solve for x
    x = 528,857,355,882.24/987,940.80
  6. Step 6: Final answer
    x = 535,312.80

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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.