Home / 470,120.71-648,777.86-255,269.83

Finding the Fourth Proportional to 470,120.71, 648,777.86 and 255,269.83

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Solution

The fourth proportional to 470,120.71, 648,777.86 and 255,269.83 is: 352,278.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,120.71 : 648,777.86 = 255,269.83 : x
  2. Step 2: Convert to fraction form
    470,120.71/648,777.86 = 255,269.83/x
  3. Step 3: Cross multiply
    470,120.71x = 648,777.86 × 255,269.83
  4. Step 4: Simplify right side
    470,120.71x = 165,613,414,029.96
  5. Step 5: Solve for x
    x = 165,613,414,029.96/470,120.71
  6. Step 6: Final answer
    x = 352,278.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.