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Finding the Fourth Proportional to 636,228.33, 954,354.81 and 509,279.37

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Solution

The fourth proportional to 636,228.33, 954,354.81 and 509,279.37 is: 763,928.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,228.33 : 954,354.81 = 509,279.37 : x
  2. Step 2: Convert to fraction form
    636,228.33/954,354.81 = 509,279.37/x
  3. Step 3: Cross multiply
    636,228.33x = 954,354.81 × 509,279.37
  4. Step 4: Simplify right side
    636,228.33x = 486,033,216,393.27
  5. Step 5: Solve for x
    x = 486,033,216,393.27/636,228.33
  6. Step 6: Final answer
    x = 763,928.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.