Home / 519,022.80-778,643.55-164,072.70

Finding the Fourth Proportional to 519,022.80, 778,643.55 and 164,072.70

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Solution

The fourth proportional to 519,022.80, 778,643.55 and 164,072.70 is: 246,143.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,022.80 : 778,643.55 = 164,072.70 : x
  2. Step 2: Convert to fraction form
    519,022.80/778,643.55 = 164,072.70/x
  3. Step 3: Cross multiply
    519,022.80x = 778,643.55 × 164,072.70
  4. Step 4: Simplify right side
    519,022.80x = 127,754,149,586.09
  5. Step 5: Solve for x
    x = 127,754,149,586.09/519,022.80
  6. Step 6: Final answer
    x = 246,143.62

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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.