Home / 1,112,563.80-1,668,845.70-947,226.60

Finding the Fourth Proportional to 1,112,563.80, 1,668,845.70 and 947,226.60

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Solution

The fourth proportional to 1,112,563.80, 1,668,845.70 and 947,226.60 is: 1,420,839.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,563.80 : 1,668,845.70 = 947,226.60 : x
  2. Step 2: Convert to fraction form
    1,112,563.80/1,668,845.70 = 947,226.60/x
  3. Step 3: Cross multiply
    1,112,563.80x = 1,668,845.70 × 947,226.60
  4. Step 4: Simplify right side
    1,112,563.80x = 1,580,775,038,335.62
  5. Step 5: Solve for x
    x = 1,580,775,038,335.62/1,112,563.80
  6. Step 6: Final answer
    x = 1,420,839.90

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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.