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Finding the Fourth Proportional to 405,900.91, 606,362.43 and 292,614.31

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Solution

The fourth proportional to 405,900.91, 606,362.43 and 292,614.31 is: 437,127.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,900.91 : 606,362.43 = 292,614.31 : x
  2. Step 2: Convert to fraction form
    405,900.91/606,362.43 = 292,614.31/x
  3. Step 3: Cross multiply
    405,900.91x = 606,362.43 × 292,614.31
  4. Step 4: Simplify right side
    405,900.91x = 177,430,324,064.37
  5. Step 5: Solve for x
    x = 177,430,324,064.37/405,900.91
  6. Step 6: Final answer
    x = 437,127.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.