Home / 1,086,010.40-1,629,793.20-455,376.80

Finding the Fourth Proportional to 1,086,010.40, 1,629,793.20 and 455,376.80

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Solution

The fourth proportional to 1,086,010.40, 1,629,793.20 and 455,376.80 is: 683,391.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,010.40 : 1,629,793.20 = 455,376.80 : x
  2. Step 2: Convert to fraction form
    1,086,010.40/1,629,793.20 = 455,376.80/x
  3. Step 3: Cross multiply
    1,086,010.40x = 1,629,793.20 × 455,376.80
  4. Step 4: Simplify right side
    1,086,010.40x = 742,170,012,077.76
  5. Step 5: Solve for x
    x = 742,170,012,077.76/1,086,010.40
  6. Step 6: Final answer
    x = 683,391.26

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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.