Home / 1,140,757.75-1,712,818.79-636,304.33

Finding the Fourth Proportional to 1,140,757.75, 1,712,818.79 and 636,304.33

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Solution

The fourth proportional to 1,140,757.75, 1,712,818.79 and 636,304.33 is: 955,394.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,757.75 : 1,712,818.79 = 636,304.33 : x
  2. Step 2: Convert to fraction form
    1,140,757.75/1,712,818.79 = 636,304.33/x
  3. Step 3: Cross multiply
    1,140,757.75x = 1,712,818.79 × 636,304.33
  4. Step 4: Simplify right side
    1,140,757.75x = 1,089,874,012,582.36
  5. Step 5: Solve for x
    x = 1,089,874,012,582.36/1,140,757.75
  6. Step 6: Final answer
    x = 955,394.79

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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.