Home / 725,904.53-1,001,696.19-399,240.20

Finding the Fourth Proportional to 725,904.53, 1,001,696.19 and 399,240.20

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Solution

The fourth proportional to 725,904.53, 1,001,696.19 and 399,240.20 is: 550,922.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,904.53 : 1,001,696.19 = 399,240.20 : x
  2. Step 2: Convert to fraction form
    725,904.53/1,001,696.19 = 399,240.20/x
  3. Step 3: Cross multiply
    725,904.53x = 1,001,696.19 × 399,240.20
  4. Step 4: Simplify right side
    725,904.53x = 399,917,388,241.93
  5. Step 5: Solve for x
    x = 399,917,388,241.93/725,904.53
  6. Step 6: Final answer
    x = 550,922.84

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Double scale
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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.