Home / 1,086,462.80-1,629,888.60-455,440.40

Finding the Fourth Proportional to 1,086,462.80, 1,629,888.60 and 455,440.40

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Solution

The fourth proportional to 1,086,462.80, 1,629,888.60 and 455,440.40 is: 683,242.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,462.80 : 1,629,888.60 = 455,440.40 : x
  2. Step 2: Convert to fraction form
    1,086,462.80/1,629,888.60 = 455,440.40/x
  3. Step 3: Cross multiply
    1,086,462.80x = 1,629,888.60 × 455,440.40
  4. Step 4: Simplify right side
    1,086,462.80x = 742,317,115,939.44
  5. Step 5: Solve for x
    x = 742,317,115,939.44/1,086,462.80
  6. Step 6: Final answer
    x = 683,242.09

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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.