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Finding the Fourth Proportional to 702,941.20, 970,063.46 and 380,651.30

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Solution

The fourth proportional to 702,941.20, 970,063.46 and 380,651.30 is: 525,301.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,941.20 : 970,063.46 = 380,651.30 : x
  2. Step 2: Convert to fraction form
    702,941.20/970,063.46 = 380,651.30/x
  3. Step 3: Cross multiply
    702,941.20x = 970,063.46 × 380,651.30
  4. Step 4: Simplify right side
    702,941.20x = 369,255,917,131.50
  5. Step 5: Solve for x
    x = 369,255,917,131.50/702,941.20
  6. Step 6: Final answer
    x = 525,301.29

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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.