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Finding the Fourth Proportional to 636,430.53, 954,015.15 and 298,866.90

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Solution

The fourth proportional to 636,430.53, 954,015.15 and 298,866.90 is: 448,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,430.53 : 954,015.15 = 298,866.90 : x
  2. Step 2: Convert to fraction form
    636,430.53/954,015.15 = 298,866.90/x
  3. Step 3: Cross multiply
    636,430.53x = 954,015.15 × 298,866.90
  4. Step 4: Simplify right side
    636,430.53x = 285,123,550,433.54
  5. Step 5: Solve for x
    x = 285,123,550,433.54/636,430.53
  6. Step 6: Final answer
    x = 448,004.20

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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.