Home / 629,899.35-869,223.65-357,929.50

Finding the Fourth Proportional to 629,899.35, 869,223.65 and 357,929.50

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Solution

The fourth proportional to 629,899.35, 869,223.65 and 357,929.50 is: 493,921.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,899.35 : 869,223.65 = 357,929.50 : x
  2. Step 2: Convert to fraction form
    629,899.35/869,223.65 = 357,929.50/x
  3. Step 3: Cross multiply
    629,899.35x = 869,223.65 × 357,929.50
  4. Step 4: Simplify right side
    629,899.35x = 311,120,782,469.97
  5. Step 5: Solve for x
    x = 311,120,782,469.97/629,899.35
  6. Step 6: Final answer
    x = 493,921.42

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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.