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Finding the Fourth Proportional to 636,591.96, 878,504.23 and 350,116.83

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Solution

The fourth proportional to 636,591.96, 878,504.23 and 350,116.83 is: 483,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,591.96 : 878,504.23 = 350,116.83 : x
  2. Step 2: Convert to fraction form
    636,591.96/878,504.23 = 350,116.83/x
  3. Step 3: Cross multiply
    636,591.96x = 878,504.23 × 350,116.83
  4. Step 4: Simplify right side
    636,591.96x = 307,579,116,586.84
  5. Step 5: Solve for x
    x = 307,579,116,586.84/636,591.96
  6. Step 6: Final answer
    x = 483,165.25

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1.5x scale

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.