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Finding the Fourth Proportional to 553,659.52, 764,050.08 and 299,010.72

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Solution

The fourth proportional to 553,659.52, 764,050.08 and 299,010.72 is: 412,634.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,659.52 : 764,050.08 = 299,010.72 : x
  2. Step 2: Convert to fraction form
    553,659.52/764,050.08 = 299,010.72/x
  3. Step 3: Cross multiply
    553,659.52x = 764,050.08 × 299,010.72
  4. Step 4: Simplify right side
    553,659.52x = 228,459,164,536.86
  5. Step 5: Solve for x
    x = 228,459,164,536.86/553,659.52
  6. Step 6: Final answer
    x = 412,634.76

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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.