Home / 1,122,112.86-1,683,388.80-412,146.24

Finding the Fourth Proportional to 1,122,112.86, 1,683,388.80 and 412,146.24

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Solution

The fourth proportional to 1,122,112.86, 1,683,388.80 and 412,146.24 is: 618,299.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,112.86 : 1,683,388.80 = 412,146.24 : x
  2. Step 2: Convert to fraction form
    1,122,112.86/1,683,388.80 = 412,146.24/x
  3. Step 3: Cross multiply
    1,122,112.86x = 1,683,388.80 × 412,146.24
  4. Step 4: Simplify right side
    1,122,112.86x = 693,802,364,378.11
  5. Step 5: Solve for x
    x = 693,802,364,378.11/1,122,112.86
  6. Step 6: Final answer
    x = 618,299.98

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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.