Home / 740,087.92-1,021,321.28-400,556.16

Finding the Fourth Proportional to 740,087.92, 1,021,321.28 and 400,556.16

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Solution

The fourth proportional to 740,087.92, 1,021,321.28 and 400,556.16 is: 552,767.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,087.92 : 1,021,321.28 = 400,556.16 : x
  2. Step 2: Convert to fraction form
    740,087.92/1,021,321.28 = 400,556.16/x
  3. Step 3: Cross multiply
    740,087.92x = 1,021,321.28 × 400,556.16
  4. Step 4: Simplify right side
    740,087.92x = 409,096,530,043.09
  5. Step 5: Solve for x
    x = 409,096,530,043.09/740,087.92
  6. Step 6: Final answer
    x = 552,767.47

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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.