Home / 1,003,974.81-1,385,084.57-641,304.60

Finding the Fourth Proportional to 1,003,974.81, 1,385,084.57 and 641,304.60

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Solution

The fourth proportional to 1,003,974.81, 1,385,084.57 and 641,304.60 is: 884,744.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,974.81 : 1,385,084.57 = 641,304.60 : x
  2. Step 2: Convert to fraction form
    1,003,974.81/1,385,084.57 = 641,304.60/x
  3. Step 3: Cross multiply
    1,003,974.81x = 1,385,084.57 × 641,304.60
  4. Step 4: Simplify right side
    1,003,974.81x = 888,261,106,130.02
  5. Step 5: Solve for x
    x = 888,261,106,130.02/1,003,974.81
  6. Step 6: Final answer
    x = 884,744.42

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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.