Home / 1,220,977.26-1,685,055.15-711,668.70

Finding the Fourth Proportional to 1,220,977.26, 1,685,055.15 and 711,668.70

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Solution

The fourth proportional to 1,220,977.26, 1,685,055.15 and 711,668.70 is: 982,164.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,977.26 : 1,685,055.15 = 711,668.70 : x
  2. Step 2: Convert to fraction form
    1,220,977.26/1,685,055.15 = 711,668.70/x
  3. Step 3: Cross multiply
    1,220,977.26x = 1,685,055.15 × 711,668.70
  4. Step 4: Simplify right side
    1,220,977.26x = 1,199,201,008,028.81
  5. Step 5: Solve for x
    x = 1,199,201,008,028.81/1,220,977.26
  6. Step 6: Final answer
    x = 982,164.90

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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.