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Finding the Fourth Proportional to 499,782.28, 689,697.48 and 270,339.70

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Solution

The fourth proportional to 499,782.28, 689,697.48 and 270,339.70 is: 373,067.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,782.28 : 689,697.48 = 270,339.70 : x
  2. Step 2: Convert to fraction form
    499,782.28/689,697.48 = 270,339.70/x
  3. Step 3: Cross multiply
    499,782.28x = 689,697.48 × 270,339.70
  4. Step 4: Simplify right side
    499,782.28x = 186,452,609,833.96
  5. Step 5: Solve for x
    x = 186,452,609,833.96/499,782.28
  6. Step 6: Final answer
    x = 373,067.67

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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.