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Finding the Fourth Proportional to 553,624.22, 764,001.40 and 298,975.39

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Solution

The fourth proportional to 553,624.22, 764,001.40 and 298,975.39 is: 412,586.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,624.22 : 764,001.40 = 298,975.39 : x
  2. Step 2: Convert to fraction form
    553,624.22/764,001.40 = 298,975.39/x
  3. Step 3: Cross multiply
    553,624.22x = 764,001.40 × 298,975.39
  4. Step 4: Simplify right side
    553,624.22x = 228,417,616,525.55
  5. Step 5: Solve for x
    x = 228,417,616,525.55/553,624.22
  6. Step 6: Final answer
    x = 412,586.03

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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.