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Finding the Fourth Proportional to 507,228.96, 699,998.10 and 280,874.46

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Solution

The fourth proportional to 507,228.96, 699,998.10 and 280,874.46 is: 387,619.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,228.96 : 699,998.10 = 280,874.46 : x
  2. Step 2: Convert to fraction form
    507,228.96/699,998.10 = 280,874.46/x
  3. Step 3: Cross multiply
    507,228.96x = 699,998.10 × 280,874.46
  4. Step 4: Simplify right side
    507,228.96x = 196,611,588,338.53
  5. Step 5: Solve for x
    x = 196,611,588,338.53/507,228.96
  6. Step 6: Final answer
    x = 387,619.01

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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.