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Finding the Fourth Proportional to 586,883.73, 809,887.37 and 318,611.73

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Solution

The fourth proportional to 586,883.73, 809,887.37 and 318,611.73 is: 439,677.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,883.73 : 809,887.37 = 318,611.73 : x
  2. Step 2: Convert to fraction form
    586,883.73/809,887.37 = 318,611.73/x
  3. Step 3: Cross multiply
    586,883.73x = 809,887.37 × 318,611.73
  4. Step 4: Simplify right side
    586,883.73x = 258,039,614,467.79
  5. Step 5: Solve for x
    x = 258,039,614,467.79/586,883.73
  6. Step 6: Final answer
    x = 439,677.57

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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.