Home / 1,009,791.50-1,393,647.42-642,304.42

Finding the Fourth Proportional to 1,009,791.50, 1,393,647.42 and 642,304.42

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Solution

The fourth proportional to 1,009,791.50, 1,393,647.42 and 642,304.42 is: 886,466.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,791.50 : 1,393,647.42 = 642,304.42 : x
  2. Step 2: Convert to fraction form
    1,009,791.50/1,393,647.42 = 642,304.42/x
  3. Step 3: Cross multiply
    1,009,791.50x = 1,393,647.42 × 642,304.42
  4. Step 4: Simplify right side
    1,009,791.50x = 895,145,896,712.12
  5. Step 5: Solve for x
    x = 895,145,896,712.12/1,009,791.50
  6. Step 6: Final answer
    x = 886,466.07

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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.