Home / 725,722.13-1,001,503.85-399,052.37

Finding the Fourth Proportional to 725,722.13, 1,001,503.85 and 399,052.37

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Solution

The fourth proportional to 725,722.13, 1,001,503.85 and 399,052.37 is: 550,696.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,722.13 : 1,001,503.85 = 399,052.37 : x
  2. Step 2: Convert to fraction form
    725,722.13/1,001,503.85 = 399,052.37/x
  3. Step 3: Cross multiply
    725,722.13x = 1,001,503.85 × 399,052.37
  4. Step 4: Simplify right side
    725,722.13x = 399,652,485,415.12
  5. Step 5: Solve for x
    x = 399,652,485,415.12/725,722.13
  6. Step 6: Final answer
    x = 550,696.29

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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.