Home / 743,396.82-1,114,927.05-343,818.24

Finding the Fourth Proportional to 743,396.82, 1,114,927.05 and 343,818.24

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Solution

The fourth proportional to 743,396.82, 1,114,927.05 and 343,818.24 is: 515,649.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,396.82 : 1,114,927.05 = 343,818.24 : x
  2. Step 2: Convert to fraction form
    743,396.82/1,114,927.05 = 343,818.24/x
  3. Step 3: Cross multiply
    743,396.82x = 1,114,927.05 × 343,818.24
  4. Step 4: Simplify right side
    743,396.82x = 383,332,256,059.39
  5. Step 5: Solve for x
    x = 383,332,256,059.39/743,396.82
  6. Step 6: Final answer
    x = 515,649.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.