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Finding the Fourth Proportional to 702,958.02, 970,080.32 and 380,668.12

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Solution

The fourth proportional to 702,958.02, 970,080.32 and 380,668.12 is: 525,321.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,958.02 : 970,080.32 = 380,668.12 : x
  2. Step 2: Convert to fraction form
    702,958.02/970,080.32 = 380,668.12/x
  3. Step 3: Cross multiply
    702,958.02x = 970,080.32 × 380,668.12
  4. Step 4: Simplify right side
    702,958.02x = 369,278,651,663.40
  5. Step 5: Solve for x
    x = 369,278,651,663.40/702,958.02
  6. Step 6: Final answer
    x = 525,321.06

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1.5x scale

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.