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Finding the Fourth Proportional to 702,418.44, 969,337.38 and 380,128.53

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Solution

The fourth proportional to 702,418.44, 969,337.38 and 380,128.53 is: 524,577.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,418.44 : 969,337.38 = 380,128.53 : x
  2. Step 2: Convert to fraction form
    702,418.44/969,337.38 = 380,128.53/x
  3. Step 3: Cross multiply
    702,418.44x = 969,337.38 × 380,128.53
  4. Step 4: Simplify right side
    702,418.44x = 368,472,793,333.45
  5. Step 5: Solve for x
    x = 368,472,793,333.45/702,418.44
  6. Step 6: Final answer
    x = 524,577.34

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1.5x scale

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.