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Finding the Fourth Proportional to 555,505.44, 766,597.28 and 300,856.64

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Solution

The fourth proportional to 555,505.44, 766,597.28 and 300,856.64 is: 415,182.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,505.44 : 766,597.28 = 300,856.64 : x
  2. Step 2: Convert to fraction form
    555,505.44/766,597.28 = 300,856.64/x
  3. Step 3: Cross multiply
    555,505.44x = 766,597.28 × 300,856.64
  4. Step 4: Simplify right side
    555,505.44x = 230,635,881,893.94
  5. Step 5: Solve for x
    x = 230,635,881,893.94/555,505.44
  6. Step 6: Final answer
    x = 415,182.04

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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.