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Finding the Fourth Proportional to 437,407.36, 655,258.56 and 276,991.36

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Solution

The fourth proportional to 437,407.36, 655,258.56 and 276,991.36 is: 414,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,407.36 : 655,258.56 = 276,991.36 : x
  2. Step 2: Convert to fraction form
    437,407.36/655,258.56 = 276,991.36/x
  3. Step 3: Cross multiply
    437,407.36x = 655,258.56 × 276,991.36
  4. Step 4: Simplify right side
    437,407.36x = 181,500,959,686.04
  5. Step 5: Solve for x
    x = 181,500,959,686.04/437,407.36
  6. Step 6: Final answer
    x = 414,947.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.