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Finding the Fourth Proportional to 658,712.46, 909,023.79 and 356,906.46

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Solution

The fourth proportional to 658,712.46, 909,023.79 and 356,906.46 is: 492,531.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,712.46 : 909,023.79 = 356,906.46 : x
  2. Step 2: Convert to fraction form
    658,712.46/909,023.79 = 356,906.46/x
  3. Step 3: Cross multiply
    658,712.46x = 909,023.79 × 356,906.46
  4. Step 4: Simplify right side
    658,712.46x = 324,436,462,944.68
  5. Step 5: Solve for x
    x = 324,436,462,944.68/658,712.46
  6. Step 6: Final answer
    x = 492,531.24

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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.