Home / 1,187,012.70-1,637,173.71-1,021,722.03

Finding the Fourth Proportional to 1,187,012.70, 1,637,173.71 and 1,021,722.03

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Solution

The fourth proportional to 1,187,012.70, 1,637,173.71 and 1,021,722.03 is: 1,409,198.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,012.70 : 1,637,173.71 = 1,021,722.03 : x
  2. Step 2: Convert to fraction form
    1,187,012.70/1,637,173.71 = 1,021,722.03/x
  3. Step 3: Cross multiply
    1,187,012.70x = 1,637,173.71 × 1,021,722.03
  4. Step 4: Simplify right side
    1,187,012.70x = 1,672,736,446,443.83
  5. Step 5: Solve for x
    x = 1,672,736,446,443.83/1,187,012.70
  6. Step 6: Final answer
    x = 1,409,198.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.