Home / 939,717.29-1,296,809.85-509,997.42

Finding the Fourth Proportional to 939,717.29, 1,296,809.85 and 509,997.42

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Solution

The fourth proportional to 939,717.29, 1,296,809.85 and 509,997.42 is: 703,796.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,717.29 : 1,296,809.85 = 509,997.42 : x
  2. Step 2: Convert to fraction form
    939,717.29/1,296,809.85 = 509,997.42/x
  3. Step 3: Cross multiply
    939,717.29x = 1,296,809.85 × 509,997.42
  4. Step 4: Simplify right side
    939,717.29x = 661,369,674,758.65
  5. Step 5: Solve for x
    x = 661,369,674,758.65/939,717.29
  6. Step 6: Final answer
    x = 703,796.43

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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.