Home / 1,038,171.90-1,554,305.40-800,007.60

Finding the Fourth Proportional to 1,038,171.90, 1,554,305.40 and 800,007.60

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Solution

The fourth proportional to 1,038,171.90, 1,554,305.40 and 800,007.60 is: 1,197,736.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,171.90 : 1,554,305.40 = 800,007.60 : x
  2. Step 2: Convert to fraction form
    1,038,171.90/1,554,305.40 = 800,007.60/x
  3. Step 3: Cross multiply
    1,038,171.90x = 1,554,305.40 × 800,007.60
  4. Step 4: Simplify right side
    1,038,171.90x = 1,243,456,132,721.04
  5. Step 5: Solve for x
    x = 1,243,456,132,721.04/1,038,171.90
  6. Step 6: Final answer
    x = 1,197,736.26

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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.