Home / 667,997.81-921,935.48-423,004.94

Finding the Fourth Proportional to 667,997.81, 921,935.48 and 423,004.94

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Solution

The fourth proportional to 667,997.81, 921,935.48 and 423,004.94 is: 583,809.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,997.81 : 921,935.48 = 423,004.94 : x
  2. Step 2: Convert to fraction form
    667,997.81/921,935.48 = 423,004.94/x
  3. Step 3: Cross multiply
    667,997.81x = 921,935.48 × 423,004.94
  4. Step 4: Simplify right side
    667,997.81x = 389,983,255,676.57
  5. Step 5: Solve for x
    x = 389,983,255,676.57/667,997.81
  6. Step 6: Final answer
    x = 583,809.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.