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Finding the Fourth Proportional to 554,236.38, 764,845.86 and 299,587.57

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Solution

The fourth proportional to 554,236.38, 764,845.86 and 299,587.57 is: 413,430.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,236.38 : 764,845.86 = 299,587.57 : x
  2. Step 2: Convert to fraction form
    554,236.38/764,845.86 = 299,587.57/x
  3. Step 3: Cross multiply
    554,236.38x = 764,845.86 × 299,587.57
  4. Step 4: Simplify right side
    554,236.38x = 229,138,308,797.73
  5. Step 5: Solve for x
    x = 229,138,308,797.73/554,236.38
  6. Step 6: Final answer
    x = 413,430.66

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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.