Home / 519,047.20-778,596.40-270,215.20

Finding the Fourth Proportional to 519,047.20, 778,596.40 and 270,215.20

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Solution

The fourth proportional to 519,047.20, 778,596.40 and 270,215.20 is: 405,336.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,047.20 : 778,596.40 = 270,215.20 : x
  2. Step 2: Convert to fraction form
    519,047.20/778,596.40 = 270,215.20/x
  3. Step 3: Cross multiply
    519,047.20x = 778,596.40 × 270,215.20
  4. Step 4: Simplify right side
    519,047.20x = 210,388,581,945.28
  5. Step 5: Solve for x
    x = 210,388,581,945.28/519,047.20
  6. Step 6: Final answer
    x = 405,336.13

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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.