Home / 939,838.70-1,296,942.65-510,109.67

Finding the Fourth Proportional to 939,838.70, 1,296,942.65 and 510,109.67

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Solution

The fourth proportional to 939,838.70, 1,296,942.65 and 510,109.67 is: 703,932.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,838.70 : 1,296,942.65 = 510,109.67 : x
  2. Step 2: Convert to fraction form
    939,838.70/1,296,942.65 = 510,109.67/x
  3. Step 3: Cross multiply
    939,838.70x = 1,296,942.65 × 510,109.67
  4. Step 4: Simplify right side
    939,838.70x = 661,582,987,200.43
  5. Step 5: Solve for x
    x = 661,582,987,200.43/939,838.70
  6. Step 6: Final answer
    x = 703,932.48

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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.