Home / 519,949.02-779,921.48-164,990.72

Finding the Fourth Proportional to 519,949.02, 779,921.48 and 164,990.72

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Solution

The fourth proportional to 519,949.02, 779,921.48 and 164,990.72 is: 247,485.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,949.02 : 779,921.48 = 164,990.72 : x
  2. Step 2: Convert to fraction form
    519,949.02/779,921.48 = 164,990.72/x
  3. Step 3: Cross multiply
    519,949.02x = 779,921.48 × 164,990.72
  4. Step 4: Simplify right side
    519,949.02x = 128,679,801,804.11
  5. Step 5: Solve for x
    x = 128,679,801,804.11/519,949.02
  6. Step 6: Final answer
    x = 247,485.42

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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.