Home / 1,211,694.30-1,817,541.45-412,904.70

Finding the Fourth Proportional to 1,211,694.30, 1,817,541.45 and 412,904.70

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Solution

The fourth proportional to 1,211,694.30, 1,817,541.45 and 412,904.70 is: 619,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,694.30 : 1,817,541.45 = 412,904.70 : x
  2. Step 2: Convert to fraction form
    1,211,694.30/1,817,541.45 = 412,904.70/x
  3. Step 3: Cross multiply
    1,211,694.30x = 1,817,541.45 × 412,904.70
  4. Step 4: Simplify right side
    1,211,694.30x = 750,471,407,149.82
  5. Step 5: Solve for x
    x = 750,471,407,149.82/1,211,694.30
  6. Step 6: Final answer
    x = 619,357.05

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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.