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Finding the Fourth Proportional to 612,782.44, 845,621.86 and 371,208.04

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Solution

The fourth proportional to 612,782.44, 845,621.86 and 371,208.04 is: 512,256.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,782.44 : 845,621.86 = 371,208.04 : x
  2. Step 2: Convert to fraction form
    612,782.44/845,621.86 = 371,208.04/x
  3. Step 3: Cross multiply
    612,782.44x = 845,621.86 × 371,208.04
  4. Step 4: Simplify right side
    612,782.44x = 313,901,633,231.75
  5. Step 5: Solve for x
    x = 313,901,633,231.75/612,782.44
  6. Step 6: Final answer
    x = 512,256.25

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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.