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Finding the Fourth Proportional to 702,993.60, 970,118.64 and 380,701.08

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Solution

The fourth proportional to 702,993.60, 970,118.64 and 380,701.08 is: 525,360.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,993.60 : 970,118.64 = 380,701.08 : x
  2. Step 2: Convert to fraction form
    702,993.60/970,118.64 = 380,701.08/x
  3. Step 3: Cross multiply
    702,993.60x = 970,118.64 × 380,701.08
  4. Step 4: Simplify right side
    702,993.60x = 369,325,213,976.13
  5. Step 5: Solve for x
    x = 369,325,213,976.13/702,993.60
  6. Step 6: Final answer
    x = 525,360.71

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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.