Home / 1,211,186.81-1,817,061.66-412,475.29

Finding the Fourth Proportional to 1,211,186.81, 1,817,061.66 and 412,475.29

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Solution

The fourth proportional to 1,211,186.81, 1,817,061.66 and 412,475.29 is: 618,808.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,186.81 : 1,817,061.66 = 412,475.29 : x
  2. Step 2: Convert to fraction form
    1,211,186.81/1,817,061.66 = 412,475.29/x
  3. Step 3: Cross multiply
    1,211,186.81x = 1,817,061.66 × 412,475.29
  4. Step 4: Simplify right side
    1,211,186.81x = 749,493,030,613.73
  5. Step 5: Solve for x
    x = 749,493,030,613.73/1,211,186.81
  6. Step 6: Final answer
    x = 618,808.78

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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.