Home / 1,311,412.37-1,966,946.27-412,858.80

Finding the Fourth Proportional to 1,311,412.37, 1,966,946.27 and 412,858.80

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Solution

The fourth proportional to 1,311,412.37, 1,966,946.27 and 412,858.80 is: 619,233.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,412.37 : 1,966,946.27 = 412,858.80 : x
  2. Step 2: Convert to fraction form
    1,311,412.37/1,966,946.27 = 412,858.80/x
  3. Step 3: Cross multiply
    1,311,412.37x = 1,966,946.27 × 412,858.80
  4. Step 4: Simplify right side
    1,311,412.37x = 812,071,074,632.38
  5. Step 5: Solve for x
    x = 812,071,074,632.38/1,311,412.37
  6. Step 6: Final answer
    x = 619,233.96

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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.