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Finding the Fourth Proportional to 507,192.22, 699,916.71 and 280,832.86

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Solution

The fourth proportional to 507,192.22, 699,916.71 and 280,832.86 is: 387,544.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,192.22 : 699,916.71 = 280,832.86 : x
  2. Step 2: Convert to fraction form
    507,192.22/699,916.71 = 280,832.86/x
  3. Step 3: Cross multiply
    507,192.22x = 699,916.71 × 280,832.86
  4. Step 4: Simplify right side
    507,192.22x = 196,559,611,431.09
  5. Step 5: Solve for x
    x = 196,559,611,431.09/507,192.22
  6. Step 6: Final answer
    x = 387,544.61

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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.