Home / 1,477,180.80-2,038,747.32-1,115,013.60

Finding the Fourth Proportional to 1,477,180.80, 2,038,747.32 and 1,115,013.60

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Solution

The fourth proportional to 1,477,180.80, 2,038,747.32 and 1,115,013.60 is: 1,538,898.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477,180.80 : 2,038,747.32 = 1,115,013.60 : x
  2. Step 2: Convert to fraction form
    1,477,180.80/2,038,747.32 = 1,115,013.60/x
  3. Step 3: Cross multiply
    1,477,180.80x = 2,038,747.32 × 1,115,013.60
  4. Step 4: Simplify right side
    1,477,180.80x = 2,273,230,988,763.55
  5. Step 5: Solve for x
    x = 2,273,230,988,763.55/1,477,180.80
  6. Step 6: Final answer
    x = 1,538,898.28

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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.