Home / 429,972.49-644,514.04-145,568.94

Finding the Fourth Proportional to 429,972.49, 644,514.04 and 145,568.94

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Solution

The fourth proportional to 429,972.49, 644,514.04 and 145,568.94 is: 218,202.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,972.49 : 644,514.04 = 145,568.94 : x
  2. Step 2: Convert to fraction form
    429,972.49/644,514.04 = 145,568.94/x
  3. Step 3: Cross multiply
    429,972.49x = 644,514.04 × 145,568.94
  4. Step 4: Simplify right side
    429,972.49x = 93,821,225,617.92
  5. Step 5: Solve for x
    x = 93,821,225,617.92/429,972.49
  6. Step 6: Final answer
    x = 218,202.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.