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Finding the Fourth Proportional to 553,775.56, 764,210.16 and 299,126.75

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Solution

The fourth proportional to 553,775.56, 764,210.16 and 299,126.75 is: 412,794.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,775.56 : 764,210.16 = 299,126.75 : x
  2. Step 2: Convert to fraction form
    553,775.56/764,210.16 = 299,126.75/x
  3. Step 3: Cross multiply
    553,775.56x = 764,210.16 × 299,126.75
  4. Step 4: Simplify right side
    553,775.56x = 228,595,699,982.15
  5. Step 5: Solve for x
    x = 228,595,699,982.15/553,775.56
  6. Step 6: Final answer
    x = 412,794.85

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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.