Home / 939,809.89-1,296,902.94-510,080.79

Finding the Fourth Proportional to 939,809.89, 1,296,902.94 and 510,080.79

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Solution

The fourth proportional to 939,809.89, 1,296,902.94 and 510,080.79 is: 703,892.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,809.89 : 1,296,902.94 = 510,080.79 : x
  2. Step 2: Convert to fraction form
    939,809.89/1,296,902.94 = 510,080.79/x
  3. Step 3: Cross multiply
    939,809.89x = 1,296,902.94 × 510,080.79
  4. Step 4: Simplify right side
    939,809.89x = 661,525,276,188.52
  5. Step 5: Solve for x
    x = 661,525,276,188.52/939,809.89
  6. Step 6: Final answer
    x = 703,892.65

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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.