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Finding the Fourth Proportional to 553,593.60, 764,015.60 and 338,875.56

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Solution

The fourth proportional to 553,593.60, 764,015.60 and 338,875.56 is: 467,682.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,593.60 : 764,015.60 = 338,875.56 : x
  2. Step 2: Convert to fraction form
    553,593.60/764,015.60 = 338,875.56/x
  3. Step 3: Cross multiply
    553,593.60x = 764,015.60 × 338,875.56
  4. Step 4: Simplify right side
    553,593.60x = 258,906,214,298.74
  5. Step 5: Solve for x
    x = 258,906,214,298.74/553,593.60
  6. Step 6: Final answer
    x = 467,682.82

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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.