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Finding the Fourth Proportional to 618,588.47, 926,674.73 and 293,914.51

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Solution

The fourth proportional to 618,588.47, 926,674.73 and 293,914.51 is: 440,297.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,588.47 : 926,674.73 = 293,914.51 : x
  2. Step 2: Convert to fraction form
    618,588.47/926,674.73 = 293,914.51/x
  3. Step 3: Cross multiply
    618,588.47x = 926,674.73 × 293,914.51
  4. Step 4: Simplify right side
    618,588.47x = 272,363,149,932.12
  5. Step 5: Solve for x
    x = 272,363,149,932.12/618,588.47
  6. Step 6: Final answer
    x = 440,297.81

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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.