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Finding the Fourth Proportional to 507,980.21, 701,044.11 and 281,625.71

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Solution

The fourth proportional to 507,980.21, 701,044.11 and 281,625.71 is: 388,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,980.21 : 701,044.11 = 281,625.71 : x
  2. Step 2: Convert to fraction form
    507,980.21/701,044.11 = 281,625.71/x
  3. Step 3: Cross multiply
    507,980.21x = 701,044.11 × 281,625.71
  4. Step 4: Simplify right side
    507,980.21x = 197,432,041,714.85
  5. Step 5: Solve for x
    x = 197,432,041,714.85/507,980.21
  6. Step 6: Final answer
    x = 388,660.90

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1.5x scale

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.