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Finding the Fourth Proportional to 539,378.28, 744,021.36 and 348,504.24

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Solution

The fourth proportional to 539,378.28, 744,021.36 and 348,504.24 is: 480,728.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,378.28 : 744,021.36 = 348,504.24 : x
  2. Step 2: Convert to fraction form
    539,378.28/744,021.36 = 348,504.24/x
  3. Step 3: Cross multiply
    539,378.28x = 744,021.36 × 348,504.24
  4. Step 4: Simplify right side
    539,378.28x = 259,294,598,610.57
  5. Step 5: Solve for x
    x = 259,294,598,610.57/539,378.28
  6. Step 6: Final answer
    x = 480,728.66

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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.