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Finding the Fourth Proportional to 519,975.44, 779,446.44 and 361,871.72

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Solution

The fourth proportional to 519,975.44, 779,446.44 and 361,871.72 is: 542,447.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,975.44 : 779,446.44 = 361,871.72 : x
  2. Step 2: Convert to fraction form
    519,975.44/779,446.44 = 361,871.72/x
  3. Step 3: Cross multiply
    519,975.44x = 779,446.44 × 361,871.72
  4. Step 4: Simplify right side
    519,975.44x = 282,059,623,890.68
  5. Step 5: Solve for x
    x = 282,059,623,890.68/519,975.44
  6. Step 6: Final answer
    x = 542,447.97

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Double scale
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1.5x scale

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.