Home / 553,628.57-764,007.43-298,979.75

Finding the Fourth Proportional to 553,628.57, 764,007.43 and 298,979.75

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Solution

The fourth proportional to 553,628.57, 764,007.43 and 298,979.75 is: 412,592.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,628.57 : 764,007.43 = 298,979.75 : x
  2. Step 2: Convert to fraction form
    553,628.57/764,007.43 = 298,979.75/x
  3. Step 3: Cross multiply
    553,628.57x = 764,007.43 × 298,979.75
  4. Step 4: Simplify right side
    553,628.57x = 228,422,748,924.64
  5. Step 5: Solve for x
    x = 228,422,748,924.64/553,628.57
  6. Step 6: Final answer
    x = 412,592.06

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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.