Home / 816,744.48-1,225,118.16-318,108.48

Finding the Fourth Proportional to 816,744.48, 1,225,118.16 and 318,108.48

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Solution

The fourth proportional to 816,744.48, 1,225,118.16 and 318,108.48 is: 477,163.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,744.48 : 1,225,118.16 = 318,108.48 : x
  2. Step 2: Convert to fraction form
    816,744.48/1,225,118.16 = 318,108.48/x
  3. Step 3: Cross multiply
    816,744.48x = 1,225,118.16 × 318,108.48
  4. Step 4: Simplify right side
    816,744.48x = 389,720,475,698.00
  5. Step 5: Solve for x
    x = 389,720,475,698.00/816,744.48
  6. Step 6: Final answer
    x = 477,163.28

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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.