Home / 412,024.83-618,436.74-198,943.08

Finding the Fourth Proportional to 412,024.83, 618,436.74 and 198,943.08

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Solution

The fourth proportional to 412,024.83, 618,436.74 and 198,943.08 is: 298,607.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,024.83 : 618,436.74 = 198,943.08 : x
  2. Step 2: Convert to fraction form
    412,024.83/618,436.74 = 198,943.08/x
  3. Step 3: Cross multiply
    412,024.83x = 618,436.74 × 198,943.08
  4. Step 4: Simplify right side
    412,024.83x = 123,033,709,840.76
  5. Step 5: Solve for x
    x = 123,033,709,840.76/412,024.83
  6. Step 6: Final answer
    x = 298,607.51

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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.