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Finding the Fourth Proportional to 790,571.04, 1,185,912 and 317,256.72

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Solution

The fourth proportional to 790,571.04, 1,185,912 and 317,256.72 is: 475,907.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,571.04 : 1,185,912 = 317,256.72 : x
  2. Step 2: Convert to fraction form
    790,571.04/1,185,912 = 317,256.72/x
  3. Step 3: Cross multiply
    790,571.04x = 1,185,912 × 317,256.72
  4. Step 4: Simplify right side
    790,571.04x = 376,238,551,328.64
  5. Step 5: Solve for x
    x = 376,238,551,328.64/790,571.04
  6. Step 6: Final answer
    x = 475,907.33

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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.