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Finding the Fourth Proportional to 586,504.52, 809,380.52 and 318,232.52

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Solution

The fourth proportional to 586,504.52, 809,380.52 and 318,232.52 is: 439,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,504.52 : 809,380.52 = 318,232.52 : x
  2. Step 2: Convert to fraction form
    586,504.52/809,380.52 = 318,232.52/x
  3. Step 3: Cross multiply
    586,504.52x = 809,380.52 × 318,232.52
  4. Step 4: Simplify right side
    586,504.52x = 257,571,202,518.51
  5. Step 5: Solve for x
    x = 257,571,202,518.51/586,504.52
  6. Step 6: Final answer
    x = 439,163.20

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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.