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Finding the Fourth Proportional to 702,906.30, 970,009.34 and 380,617.35

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Solution

The fourth proportional to 702,906.30, 970,009.34 and 380,617.35 is: 525,251.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,906.30 : 970,009.34 = 380,617.35 : x
  2. Step 2: Convert to fraction form
    702,906.30/970,009.34 = 380,617.35/x
  3. Step 3: Cross multiply
    702,906.30x = 970,009.34 × 380,617.35
  4. Step 4: Simplify right side
    702,906.30x = 369,202,382,562.96
  5. Step 5: Solve for x
    x = 369,202,382,562.96/702,906.30
  6. Step 6: Final answer
    x = 525,251.21

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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.