Home / 725,614.98-1,001,360.66-398,941.80

Finding the Fourth Proportional to 725,614.98, 1,001,360.66 and 398,941.80

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Solution

The fourth proportional to 725,614.98, 1,001,360.66 and 398,941.80 is: 550,546.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,614.98 : 1,001,360.66 = 398,941.80 : x
  2. Step 2: Convert to fraction form
    725,614.98/1,001,360.66 = 398,941.80/x
  3. Step 3: Cross multiply
    725,614.98x = 1,001,360.66 × 398,941.80
  4. Step 4: Simplify right side
    725,614.98x = 399,484,624,149.59
  5. Step 5: Solve for x
    x = 399,484,624,149.59/725,614.98
  6. Step 6: Final answer
    x = 550,546.27

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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.