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Finding the Fourth Proportional to 553,658.08, 764,048.20 and 299,009.20

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Solution

The fourth proportional to 553,658.08, 764,048.20 and 299,009.20 is: 412,632.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,658.08 : 764,048.20 = 299,009.20 : x
  2. Step 2: Convert to fraction form
    553,658.08/764,048.20 = 299,009.20/x
  3. Step 3: Cross multiply
    553,658.08x = 764,048.20 × 299,009.20
  4. Step 4: Simplify right side
    553,658.08x = 228,457,441,043.44
  5. Step 5: Solve for x
    x = 228,457,441,043.44/553,658.08
  6. Step 6: Final answer
    x = 412,632.72

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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.