Home / 939,849.75-1,296,993.96-510,129.96

Finding the Fourth Proportional to 939,849.75, 1,296,993.96 and 510,129.96

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Solution

The fourth proportional to 939,849.75, 1,296,993.96 and 510,129.96 is: 703,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,849.75 : 1,296,993.96 = 510,129.96 : x
  2. Step 2: Convert to fraction form
    939,849.75/1,296,993.96 = 510,129.96/x
  3. Step 3: Cross multiply
    939,849.75x = 1,296,993.96 × 510,129.96
  4. Step 4: Simplify right side
    939,849.75x = 661,635,476,935.04
  5. Step 5: Solve for x
    x = 661,635,476,935.04/939,849.75
  6. Step 6: Final answer
    x = 703,980.05

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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.