Home / 1,004,830.40-1,504,912.80-687,569.60

Finding the Fourth Proportional to 1,004,830.40, 1,504,912.80 and 687,569.60

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Solution

The fourth proportional to 1,004,830.40, 1,504,912.80 and 687,569.60 is: 1,029,758.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004,830.40 : 1,504,912.80 = 687,569.60 : x
  2. Step 2: Convert to fraction form
    1,004,830.40/1,504,912.80 = 687,569.60/x
  3. Step 3: Cross multiply
    1,004,830.40x = 1,504,912.80 × 687,569.60
  4. Step 4: Simplify right side
    1,004,830.40x = 1,034,732,291,930.88
  5. Step 5: Solve for x
    x = 1,034,732,291,930.88/1,004,830.40
  6. Step 6: Final answer
    x = 1,029,758.15

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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.