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Finding the Fourth Proportional to 576,768.09, 795,986.51 and 318,667.69

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Solution

The fourth proportional to 576,768.09, 795,986.51 and 318,667.69 is: 439,787.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,768.09 : 795,986.51 = 318,667.69 : x
  2. Step 2: Convert to fraction form
    576,768.09/795,986.51 = 318,667.69/x
  3. Step 3: Cross multiply
    576,768.09x = 795,986.51 × 318,667.69
  4. Step 4: Simplify right side
    576,768.09x = 253,655,180,819.52
  5. Step 5: Solve for x
    x = 253,655,180,819.52/576,768.09
  6. Step 6: Final answer
    x = 439,787.13

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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.