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Finding the Fourth Proportional to 549,016.36, 757,634.76 and 303,977.70

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Solution

The fourth proportional to 549,016.36, 757,634.76 and 303,977.70 is: 419,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,016.36 : 757,634.76 = 303,977.70 : x
  2. Step 2: Convert to fraction form
    549,016.36/757,634.76 = 303,977.70/x
  3. Step 3: Cross multiply
    549,016.36x = 757,634.76 × 303,977.70
  4. Step 4: Simplify right side
    549,016.36x = 230,304,071,784.85
  5. Step 5: Solve for x
    x = 230,304,071,784.85/549,016.36
  6. Step 6: Final answer
    x = 419,484.90

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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.