Home / 762,361.78-1,052,060.89-418,200.54

Finding the Fourth Proportional to 762,361.78, 1,052,060.89 and 418,200.54

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Solution

The fourth proportional to 762,361.78, 1,052,060.89 and 418,200.54 is: 577,117.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,361.78 : 1,052,060.89 = 418,200.54 : x
  2. Step 2: Convert to fraction form
    762,361.78/1,052,060.89 = 418,200.54/x
  3. Step 3: Cross multiply
    762,361.78x = 1,052,060.89 × 418,200.54
  4. Step 4: Simplify right side
    762,361.78x = 439,972,432,310.88
  5. Step 5: Solve for x
    x = 439,972,432,310.88/762,361.78
  6. Step 6: Final answer
    x = 577,117.64

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Double scale
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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.