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Finding the Fourth Proportional to 903,300, 1,246,554 and 500,892

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Solution

The fourth proportional to 903,300, 1,246,554 and 500,892 is: 691,230.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,300 : 1,246,554 = 500,892 : x
  2. Step 2: Convert to fraction form
    903,300/1,246,554 = 500,892/x
  3. Step 3: Cross multiply
    903,300x = 1,246,554 × 500,892
  4. Step 4: Simplify right side
    903,300x = 624,388,926,168
  5. Step 5: Solve for x
    x = 624,388,926,168/903,300
  6. Step 6: Final answer
    x = 691,230.96

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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.