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Finding the Fourth Proportional to 500,958.96, 691,351.65 and 297,130.56

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Solution

The fourth proportional to 500,958.96, 691,351.65 and 297,130.56 is: 410,056.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,958.96 : 691,351.65 = 297,130.56 : x
  2. Step 2: Convert to fraction form
    500,958.96/691,351.65 = 297,130.56/x
  3. Step 3: Cross multiply
    500,958.96x = 691,351.65 × 297,130.56
  4. Step 4: Simplify right side
    500,958.96x = 205,421,702,921.42
  5. Step 5: Solve for x
    x = 205,421,702,921.42/500,958.96
  6. Step 6: Final answer
    x = 410,056.95

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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.