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Finding the Fourth Proportional to 493,637.41, 740,309.40 and 209,323.76

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Solution

The fourth proportional to 493,637.41, 740,309.40 and 209,323.76 is: 313,923.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,637.41 : 740,309.40 = 209,323.76 : x
  2. Step 2: Convert to fraction form
    493,637.41/740,309.40 = 209,323.76/x
  3. Step 3: Cross multiply
    493,637.41x = 740,309.40 × 209,323.76
  4. Step 4: Simplify right side
    493,637.41x = 154,964,349,022.12
  5. Step 5: Solve for x
    x = 154,964,349,022.12/493,637.41
  6. Step 6: Final answer
    x = 313,923.43

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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.