Home / 484,389.55-668,550.09-320,757.63

Finding the Fourth Proportional to 484,389.55, 668,550.09 and 320,757.63

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Solution

The fourth proportional to 484,389.55, 668,550.09 and 320,757.63 is: 442,706.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,389.55 : 668,550.09 = 320,757.63 : x
  2. Step 2: Convert to fraction form
    484,389.55/668,550.09 = 320,757.63/x
  3. Step 3: Cross multiply
    484,389.55x = 668,550.09 × 320,757.63
  4. Step 4: Simplify right side
    484,389.55x = 214,442,542,404.69
  5. Step 5: Solve for x
    x = 214,442,542,404.69/484,389.55
  6. Step 6: Final answer
    x = 442,706.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.