Home / 740,028.39-1,021,239.26-400,496.64

Finding the Fourth Proportional to 740,028.39, 1,021,239.26 and 400,496.64

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Solution

The fourth proportional to 740,028.39, 1,021,239.26 and 400,496.64 is: 552,685.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,028.39 : 1,021,239.26 = 400,496.64 : x
  2. Step 2: Convert to fraction form
    740,028.39/1,021,239.26 = 400,496.64/x
  3. Step 3: Cross multiply
    740,028.39x = 1,021,239.26 × 400,496.64
  4. Step 4: Simplify right side
    740,028.39x = 409,002,892,266.09
  5. Step 5: Solve for x
    x = 409,002,892,266.09/740,028.39
  6. Step 6: Final answer
    x = 552,685.41

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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.