Home / 545,416.12-752,708.43-300,400.83

Finding the Fourth Proportional to 545,416.12, 752,708.43 and 300,400.83

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Solution

The fourth proportional to 545,416.12, 752,708.43 and 300,400.83 is: 414,571.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,416.12 : 752,708.43 = 300,400.83 : x
  2. Step 2: Convert to fraction form
    545,416.12/752,708.43 = 300,400.83/x
  3. Step 3: Cross multiply
    545,416.12x = 752,708.43 × 300,400.83
  4. Step 4: Simplify right side
    545,416.12x = 226,114,237,120.00
  5. Step 5: Solve for x
    x = 226,114,237,120.00/545,416.12
  6. Step 6: Final answer
    x = 414,571.97

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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.