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Finding the Fourth Proportional to 507,741.75, 700,679.27 and 278,311.79

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Solution

The fourth proportional to 507,741.75, 700,679.27 and 278,311.79 is: 384,067.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,741.75 : 700,679.27 = 278,311.79 : x
  2. Step 2: Convert to fraction form
    507,741.75/700,679.27 = 278,311.79/x
  3. Step 3: Cross multiply
    507,741.75x = 700,679.27 × 278,311.79
  4. Step 4: Simplify right side
    507,741.75x = 195,007,301,849.59
  5. Step 5: Solve for x
    x = 195,007,301,849.59/507,741.75
  6. Step 6: Final answer
    x = 384,067.89

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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.