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Finding the Fourth Proportional to 553,624.02, 764,001.12 and 298,975.20

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Solution

The fourth proportional to 553,624.02, 764,001.12 and 298,975.20 is: 412,585.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,624.02 : 764,001.12 = 298,975.20 : x
  2. Step 2: Convert to fraction form
    553,624.02/764,001.12 = 298,975.20/x
  3. Step 3: Cross multiply
    553,624.02x = 764,001.12 × 298,975.20
  4. Step 4: Simplify right side
    553,624.02x = 228,417,387,652.22
  5. Step 5: Solve for x
    x = 228,417,387,652.22/553,624.02
  6. Step 6: Final answer
    x = 412,585.76

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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.