Home / 1,237,628.66-1,856,972.34-518,138.46

Finding the Fourth Proportional to 1,237,628.66, 1,856,972.34 and 518,138.46

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Solution

The fourth proportional to 1,237,628.66, 1,856,972.34 and 518,138.46 is: 777,429.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,628.66 : 1,856,972.34 = 518,138.46 : x
  2. Step 2: Convert to fraction form
    1,237,628.66/1,856,972.34 = 518,138.46/x
  3. Step 3: Cross multiply
    1,237,628.66x = 1,856,972.34 × 518,138.46
  4. Step 4: Simplify right side
    1,237,628.66x = 962,168,788,510.20
  5. Step 5: Solve for x
    x = 962,168,788,510.20/1,237,628.66
  6. Step 6: Final answer
    x = 777,429.31

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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.