Home / 432,004.20-648,297.90-281,878.80

Finding the Fourth Proportional to 432,004.20, 648,297.90 and 281,878.80

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Solution

The fourth proportional to 432,004.20, 648,297.90 and 281,878.80 is: 423,008.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,004.20 : 648,297.90 = 281,878.80 : x
  2. Step 2: Convert to fraction form
    432,004.20/648,297.90 = 281,878.80/x
  3. Step 3: Cross multiply
    432,004.20x = 648,297.90 × 281,878.80
  4. Step 4: Simplify right side
    432,004.20x = 182,741,434,094.52
  5. Step 5: Solve for x
    x = 182,741,434,094.52/432,004.20
  6. Step 6: Final answer
    x = 423,008.47

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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.