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Finding the Fourth Proportional to 702,960.57, 970,086.11 and 380,671.02

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Solution

The fourth proportional to 702,960.57, 970,086.11 and 380,671.02 is: 525,326.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,960.57 : 970,086.11 = 380,671.02 : x
  2. Step 2: Convert to fraction form
    702,960.57/970,086.11 = 380,671.02/x
  3. Step 3: Cross multiply
    702,960.57x = 970,086.11 × 380,671.02
  4. Step 4: Simplify right side
    702,960.57x = 369,283,667,078.18
  5. Step 5: Solve for x
    x = 369,283,667,078.18/702,960.57
  6. Step 6: Final answer
    x = 525,326.29

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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.