Home / 939,723.09-1,296,818.52-510,003.21

Finding the Fourth Proportional to 939,723.09, 1,296,818.52 and 510,003.21

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Solution

The fourth proportional to 939,723.09, 1,296,818.52 and 510,003.21 is: 703,804.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,723.09 : 1,296,818.52 = 510,003.21 : x
  2. Step 2: Convert to fraction form
    939,723.09/1,296,818.52 = 510,003.21/x
  3. Step 3: Cross multiply
    939,723.09x = 1,296,818.52 × 510,003.21
  4. Step 4: Simplify right side
    939,723.09x = 661,381,601,211.87
  5. Step 5: Solve for x
    x = 661,381,601,211.87/939,723.09
  6. Step 6: Final answer
    x = 703,804.78

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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.