Home / 519,769.20-779,580.90-164,819.10

Finding the Fourth Proportional to 519,769.20, 779,580.90 and 164,819.10

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Solution

The fourth proportional to 519,769.20, 779,580.90 and 164,819.10 is: 247,205.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,769.20 : 779,580.90 = 164,819.10 : x
  2. Step 2: Convert to fraction form
    519,769.20/779,580.90 = 164,819.10/x
  3. Step 3: Cross multiply
    519,769.20x = 779,580.90 × 164,819.10
  4. Step 4: Simplify right side
    519,769.20x = 128,489,822,315.19
  5. Step 5: Solve for x
    x = 128,489,822,315.19/519,769.20
  6. Step 6: Final answer
    x = 247,205.53

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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.