Home / 813,216.13-1,219,815.39-333,336.96

Finding the Fourth Proportional to 813,216.13, 1,219,815.39 and 333,336.96

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Solution

The fourth proportional to 813,216.13, 1,219,815.39 and 333,336.96 is: 500,001.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,216.13 : 1,219,815.39 = 333,336.96 : x
  2. Step 2: Convert to fraction form
    813,216.13/1,219,815.39 = 333,336.96/x
  3. Step 3: Cross multiply
    813,216.13x = 1,219,815.39 × 333,336.96
  4. Step 4: Simplify right side
    813,216.13x = 406,609,551,054.70
  5. Step 5: Solve for x
    x = 406,609,551,054.70/813,216.13
  6. Step 6: Final answer
    x = 500,001.83

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1.5x scale

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.