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Finding the Fourth Proportional to 553,898.27, 764,382.96 and 308,898.52

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Solution

The fourth proportional to 553,898.27, 764,382.96 and 308,898.52 is: 426,281.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,898.27 : 764,382.96 = 308,898.52 : x
  2. Step 2: Convert to fraction form
    553,898.27/764,382.96 = 308,898.52/x
  3. Step 3: Cross multiply
    553,898.27x = 764,382.96 × 308,898.52
  4. Step 4: Simplify right side
    553,898.27x = 236,116,763,146.26
  5. Step 5: Solve for x
    x = 236,116,763,146.26/553,898.27
  6. Step 6: Final answer
    x = 426,281.82

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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.