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Finding the Fourth Proportional to 576,660, 795,787.64 and 318,554.72

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Solution

The fourth proportional to 576,660, 795,787.64 and 318,554.72 is: 439,603.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,660 : 795,787.64 = 318,554.72 : x
  2. Step 2: Convert to fraction form
    576,660/795,787.64 = 318,554.72/x
  3. Step 3: Cross multiply
    576,660x = 795,787.64 × 318,554.72
  4. Step 4: Simplify right side
    576,660x = 253,501,908,839.66
  5. Step 5: Solve for x
    x = 253,501,908,839.66/576,660
  6. Step 6: Final answer
    x = 439,603.77

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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.