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Finding the Fourth Proportional to 702,919.55, 970,027.62 and 380,630.60

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Solution

The fourth proportional to 702,919.55, 970,027.62 and 380,630.60 is: 525,269.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,919.55 : 970,027.62 = 380,630.60 : x
  2. Step 2: Convert to fraction form
    702,919.55/970,027.62 = 380,630.60/x
  3. Step 3: Cross multiply
    702,919.55x = 970,027.62 × 380,630.60
  4. Step 4: Simplify right side
    702,919.55x = 369,222,195,017.17
  5. Step 5: Solve for x
    x = 369,222,195,017.17/702,919.55
  6. Step 6: Final answer
    x = 525,269.49

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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.