Home / 505,269.20-758,518.20-379,624.40

Finding the Fourth Proportional to 505,269.20, 758,518.20 and 379,624.40

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Solution

The fourth proportional to 505,269.20, 758,518.20 and 379,624.40 is: 569,898.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,269.20 : 758,518.20 = 379,624.40 : x
  2. Step 2: Convert to fraction form
    505,269.20/758,518.20 = 379,624.40/x
  3. Step 3: Cross multiply
    505,269.20x = 758,518.20 × 379,624.40
  4. Step 4: Simplify right side
    505,269.20x = 287,952,016,564.08
  5. Step 5: Solve for x
    x = 287,952,016,564.08/505,269.20
  6. Step 6: Final answer
    x = 569,898.22

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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.