Home / 1,343,396.28-1,853,860.20-731,556.30

Finding the Fourth Proportional to 1,343,396.28, 1,853,860.20 and 731,556.30

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Solution

The fourth proportional to 1,343,396.28, 1,853,860.20 and 731,556.30 is: 1,009,533.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,396.28 : 1,853,860.20 = 731,556.30 : x
  2. Step 2: Convert to fraction form
    1,343,396.28/1,853,860.20 = 731,556.30/x
  3. Step 3: Cross multiply
    1,343,396.28x = 1,853,860.20 × 731,556.30
  4. Step 4: Simplify right side
    1,343,396.28x = 1,356,203,108,629.26
  5. Step 5: Solve for x
    x = 1,356,203,108,629.26/1,343,396.28
  6. Step 6: Final answer
    x = 1,009,533.17

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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.