Home / 1,011,089.12-1,394,662.23-768,840.60

Finding the Fourth Proportional to 1,011,089.12, 1,394,662.23 and 768,840.60

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Solution

The fourth proportional to 1,011,089.12, 1,394,662.23 and 768,840.60 is: 1,060,512.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,089.12 : 1,394,662.23 = 768,840.60 : x
  2. Step 2: Convert to fraction form
    1,011,089.12/1,394,662.23 = 768,840.60/x
  3. Step 3: Cross multiply
    1,011,089.12x = 1,394,662.23 × 768,840.60
  4. Step 4: Simplify right side
    1,011,089.12x = 1,072,272,945,710.54
  5. Step 5: Solve for x
    x = 1,072,272,945,710.54/1,011,089.12
  6. Step 6: Final answer
    x = 1,060,512.79

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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.