Home / 752,333.81-1,128,586.33-272,787.45

Finding the Fourth Proportional to 752,333.81, 1,128,586.33 and 272,787.45

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Solution

The fourth proportional to 752,333.81, 1,128,586.33 and 272,787.45 is: 409,212.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,333.81 : 1,128,586.33 = 272,787.45 : x
  2. Step 2: Convert to fraction form
    752,333.81/1,128,586.33 = 272,787.45/x
  3. Step 3: Cross multiply
    752,333.81x = 1,128,586.33 × 272,787.45
  4. Step 4: Simplify right side
    752,333.81x = 307,864,183,174.34
  5. Step 5: Solve for x
    x = 307,864,183,174.34/752,333.81
  6. Step 6: Final answer
    x = 409,212.22

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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.