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Finding the Fourth Proportional to 508,465.02, 701,507.94 and 290,517.36

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Solution

The fourth proportional to 508,465.02, 701,507.94 and 290,517.36 is: 400,814.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,465.02 : 701,507.94 = 290,517.36 : x
  2. Step 2: Convert to fraction form
    508,465.02/701,507.94 = 290,517.36/x
  3. Step 3: Cross multiply
    508,465.02x = 701,507.94 × 290,517.36
  4. Step 4: Simplify right side
    508,465.02x = 203,800,234,747.84
  5. Step 5: Solve for x
    x = 203,800,234,747.84/508,465.02
  6. Step 6: Final answer
    x = 400,814.66

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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.