Home / 725,999.88-1,001,904.18-399,326.72

Finding the Fourth Proportional to 725,999.88, 1,001,904.18 and 399,326.72

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Solution

The fourth proportional to 725,999.88, 1,001,904.18 and 399,326.72 is: 551,084.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,999.88 : 1,001,904.18 = 399,326.72 : x
  2. Step 2: Convert to fraction form
    725,999.88/1,001,904.18 = 399,326.72/x
  3. Step 3: Cross multiply
    725,999.88x = 1,001,904.18 × 399,326.72
  4. Step 4: Simplify right side
    725,999.88x = 400,087,106,441.64
  5. Step 5: Solve for x
    x = 400,087,106,441.64/725,999.88
  6. Step 6: Final answer
    x = 551,084.26

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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.