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Finding the Fourth Proportional to 570,743.48, 856,246.42 and 171,391.80

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Solution

The fourth proportional to 570,743.48, 856,246.42 and 171,391.80 is: 257,127.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,743.48 : 856,246.42 = 171,391.80 : x
  2. Step 2: Convert to fraction form
    570,743.48/856,246.42 = 171,391.80/x
  3. Step 3: Cross multiply
    570,743.48x = 856,246.42 × 171,391.80
  4. Step 4: Simplify right side
    570,743.48x = 146,753,615,167.36
  5. Step 5: Solve for x
    x = 146,753,615,167.36/570,743.48
  6. Step 6: Final answer
    x = 257,127.10

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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.