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Finding the Fourth Proportional to 429,919.02, 644,119.05 and 261,094.62

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Solution

The fourth proportional to 429,919.02, 644,119.05 and 261,094.62 is: 391,180.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,919.02 : 644,119.05 = 261,094.62 : x
  2. Step 2: Convert to fraction form
    429,919.02/644,119.05 = 261,094.62/x
  3. Step 3: Cross multiply
    429,919.02x = 644,119.05 × 261,094.62
  4. Step 4: Simplify right side
    429,919.02x = 168,176,018,594.51
  5. Step 5: Solve for x
    x = 168,176,018,594.51/429,919.02
  6. Step 6: Final answer
    x = 391,180.69

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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.