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Finding the Fourth Proportional to 553,774.12, 764,208.76 and 299,125.52

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Solution

The fourth proportional to 553,774.12, 764,208.76 and 299,125.52 is: 412,793.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,774.12 : 764,208.76 = 299,125.52 : x
  2. Step 2: Convert to fraction form
    553,774.12/764,208.76 = 299,125.52/x
  3. Step 3: Cross multiply
    553,774.12x = 764,208.76 × 299,125.52
  4. Step 4: Simplify right side
    553,774.12x = 228,594,342,723.56
  5. Step 5: Solve for x
    x = 228,594,342,723.56/553,774.12
  6. Step 6: Final answer
    x = 412,793.47

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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.