Home / 553,749.12-764,174.25-299,100.51

Finding the Fourth Proportional to 553,749.12, 764,174.25 and 299,100.51

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Solution

The fourth proportional to 553,749.12, 764,174.25 and 299,100.51 is: 412,758.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,749.12 : 764,174.25 = 299,100.51 : x
  2. Step 2: Convert to fraction form
    553,749.12/764,174.25 = 299,100.51/x
  3. Step 3: Cross multiply
    553,749.12x = 764,174.25 × 299,100.51
  4. Step 4: Simplify right side
    553,749.12x = 228,564,907,903.87
  5. Step 5: Solve for x
    x = 228,564,907,903.87/553,749.12
  6. Step 6: Final answer
    x = 412,758.95

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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.