Home / 725,819.54-1,001,656.73-399,157.39

Finding the Fourth Proportional to 725,819.54, 1,001,656.73 and 399,157.39

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Solution

The fourth proportional to 725,819.54, 1,001,656.73 and 399,157.39 is: 550,851.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,819.54 : 1,001,656.73 = 399,157.39 : x
  2. Step 2: Convert to fraction form
    725,819.54/1,001,656.73 = 399,157.39/x
  3. Step 3: Cross multiply
    725,819.54x = 1,001,656.73 × 399,157.39
  4. Step 4: Simplify right side
    725,819.54x = 399,818,680,393.12
  5. Step 5: Solve for x
    x = 399,818,680,393.12/725,819.54
  6. Step 6: Final answer
    x = 550,851.36

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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.