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Finding the Fourth Proportional to 579,871.04, 869,457.02 and 259,965

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Solution

The fourth proportional to 579,871.04, 869,457.02 and 259,965 is: 389,790.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,871.04 : 869,457.02 = 259,965 : x
  2. Step 2: Convert to fraction form
    579,871.04/869,457.02 = 259,965/x
  3. Step 3: Cross multiply
    579,871.04x = 869,457.02 × 259,965
  4. Step 4: Simplify right side
    579,871.04x = 226,028,392,904.48
  5. Step 5: Solve for x
    x = 226,028,392,904.48/579,871.04
  6. Step 6: Final answer
    x = 389,790.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.