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Finding the Fourth Proportional to 702,992.72, 970,208.52 and 401,237.84

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Solution

The fourth proportional to 702,992.72, 970,208.52 and 401,237.84 is: 553,753.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,992.72 : 970,208.52 = 401,237.84 : x
  2. Step 2: Convert to fraction form
    702,992.72/970,208.52 = 401,237.84/x
  3. Step 3: Cross multiply
    702,992.72x = 970,208.52 × 401,237.84
  4. Step 4: Simplify right side
    702,992.72x = 389,284,370,914.40
  5. Step 5: Solve for x
    x = 389,284,370,914.40/702,992.72
  6. Step 6: Final answer
    x = 553,753.06

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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.