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Finding the Fourth Proportional to 702,906.60, 970,011.62 and 380,619.24

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Solution

The fourth proportional to 702,906.60, 970,011.62 and 380,619.24 is: 525,254.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,906.60 : 970,011.62 = 380,619.24 : x
  2. Step 2: Convert to fraction form
    702,906.60/970,011.62 = 380,619.24/x
  3. Step 3: Cross multiply
    702,906.60x = 970,011.62 × 380,619.24
  4. Step 4: Simplify right side
    702,906.60x = 369,205,085,595.57
  5. Step 5: Solve for x
    x = 369,205,085,595.57/702,906.60
  6. Step 6: Final answer
    x = 525,254.83

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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.