Home / 939,867.58-1,296,982.34-510,138.46

Finding the Fourth Proportional to 939,867.58, 1,296,982.34 and 510,138.46

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Solution

The fourth proportional to 939,867.58, 1,296,982.34 and 510,138.46 is: 703,972.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,867.58 : 1,296,982.34 = 510,138.46 : x
  2. Step 2: Convert to fraction form
    939,867.58/1,296,982.34 = 510,138.46/x
  3. Step 3: Cross multiply
    939,867.58x = 1,296,982.34 × 510,138.46
  4. Step 4: Simplify right side
    939,867.58x = 661,640,573,574.80
  5. Step 5: Solve for x
    x = 661,640,573,574.80/939,867.58
  6. Step 6: Final answer
    x = 703,972.12

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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.