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Finding the Fourth Proportional to 553,794.19, 764,236.38 and 299,145.38

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Solution

The fourth proportional to 553,794.19, 764,236.38 and 299,145.38 is: 412,820.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,794.19 : 764,236.38 = 299,145.38 : x
  2. Step 2: Convert to fraction form
    553,794.19/764,236.38 = 299,145.38/x
  3. Step 3: Cross multiply
    553,794.19x = 764,236.38 × 299,145.38
  4. Step 4: Simplify right side
    553,794.19x = 228,617,779,605.54
  5. Step 5: Solve for x
    x = 228,617,779,605.54/553,794.19
  6. Step 6: Final answer
    x = 412,820.84

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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.