Home / 939,989.24-1,297,192.76-520,892.03

Finding the Fourth Proportional to 939,989.24, 1,297,192.76 and 520,892.03

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Solution

The fourth proportional to 939,989.24, 1,297,192.76 and 520,892.03 is: 718,835.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,989.24 : 1,297,192.76 = 520,892.03 : x
  2. Step 2: Convert to fraction form
    939,989.24/1,297,192.76 = 520,892.03/x
  3. Step 3: Cross multiply
    939,989.24x = 1,297,192.76 × 520,892.03
  4. Step 4: Simplify right side
    939,989.24x = 675,697,364,873.97
  5. Step 5: Solve for x
    x = 675,697,364,873.97/939,989.24
  6. Step 6: Final answer
    x = 718,835.22

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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.