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Finding the Fourth Proportional to 553,799.63, 764,243.91 and 299,150.84

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Solution

The fourth proportional to 553,799.63, 764,243.91 and 299,150.84 is: 412,828.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,799.63 : 764,243.91 = 299,150.84 : x
  2. Step 2: Convert to fraction form
    553,799.63/764,243.91 = 299,150.84/x
  3. Step 3: Cross multiply
    553,799.63x = 764,243.91 × 299,150.84
  4. Step 4: Simplify right side
    553,799.63x = 228,624,203,820.17
  5. Step 5: Solve for x
    x = 228,624,203,820.17/553,799.63
  6. Step 6: Final answer
    x = 412,828.38

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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.