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Finding the Fourth Proportional to 636,334.48, 954,298.77 and 209,790.82

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Solution

The fourth proportional to 636,334.48, 954,298.77 and 209,790.82 is: 314,619.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,334.48 : 954,298.77 = 209,790.82 : x
  2. Step 2: Convert to fraction form
    636,334.48/954,298.77 = 209,790.82/x
  3. Step 3: Cross multiply
    636,334.48x = 954,298.77 × 209,790.82
  4. Step 4: Simplify right side
    636,334.48x = 200,203,121,483.29
  5. Step 5: Solve for x
    x = 200,203,121,483.29/636,334.48
  6. Step 6: Final answer
    x = 314,619.32

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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.