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Finding the Fourth Proportional to 567,629.04, 783,328 and 312,985.52

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Solution

The fourth proportional to 567,629.04, 783,328 and 312,985.52 is: 431,919.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,629.04 : 783,328 = 312,985.52 : x
  2. Step 2: Convert to fraction form
    567,629.04/783,328 = 312,985.52/x
  3. Step 3: Cross multiply
    567,629.04x = 783,328 × 312,985.52
  4. Step 4: Simplify right side
    567,629.04x = 245,170,321,410.56
  5. Step 5: Solve for x
    x = 245,170,321,410.56/567,629.04
  6. Step 6: Final answer
    x = 431,919.98

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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.