Home / 499,213.80-689,038.86-284,481.24

Finding the Fourth Proportional to 499,213.80, 689,038.86 and 284,481.24

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Solution

The fourth proportional to 499,213.80, 689,038.86 and 284,481.24 is: 392,654.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,213.80 : 689,038.86 = 284,481.24 : x
  2. Step 2: Convert to fraction form
    499,213.80/689,038.86 = 284,481.24/x
  3. Step 3: Cross multiply
    499,213.80x = 689,038.86 × 284,481.24
  4. Step 4: Simplify right side
    499,213.80x = 196,018,629,300.99
  5. Step 5: Solve for x
    x = 196,018,629,300.99/499,213.80
  6. Step 6: Final answer
    x = 392,654.67

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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.