Home / 1,314,992.40-1,972,342.80-1,077,921.60

Finding the Fourth Proportional to 1,314,992.40, 1,972,342.80 and 1,077,921.60

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Solution

The fourth proportional to 1,314,992.40, 1,972,342.80 and 1,077,921.60 is: 1,616,762.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,992.40 : 1,972,342.80 = 1,077,921.60 : x
  2. Step 2: Convert to fraction form
    1,314,992.40/1,972,342.80 = 1,077,921.60/x
  3. Step 3: Cross multiply
    1,314,992.40x = 1,972,342.80 × 1,077,921.60
  4. Step 4: Simplify right side
    1,314,992.40x = 2,126,030,906,724.48
  5. Step 5: Solve for x
    x = 2,126,030,906,724.48/1,314,992.40
  6. Step 6: Final answer
    x = 1,616,762.89

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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.