Home / 429,354.04-644,140.48-192,786.24

Finding the Fourth Proportional to 429,354.04, 644,140.48 and 192,786.24

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Solution

The fourth proportional to 429,354.04, 644,140.48 and 192,786.24 is: 289,228.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,354.04 : 644,140.48 = 192,786.24 : x
  2. Step 2: Convert to fraction form
    429,354.04/644,140.48 = 192,786.24/x
  3. Step 3: Cross multiply
    429,354.04x = 644,140.48 × 192,786.24
  4. Step 4: Simplify right side
    429,354.04x = 124,181,421,171.00
  5. Step 5: Solve for x
    x = 124,181,421,171.00/429,354.04
  6. Step 6: Final answer
    x = 289,228.49

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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.