Home / 1,393,025.12-2,089,538.13-919,599.77

Finding the Fourth Proportional to 1,393,025.12, 2,089,538.13 and 919,599.77

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Solution

The fourth proportional to 1,393,025.12, 2,089,538.13 and 919,599.77 is: 1,379,399.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,025.12 : 2,089,538.13 = 919,599.77 : x
  2. Step 2: Convert to fraction form
    1,393,025.12/2,089,538.13 = 919,599.77/x
  3. Step 3: Cross multiply
    1,393,025.12x = 2,089,538.13 × 919,599.77
  4. Step 4: Simplify right side
    1,393,025.12x = 1,921,538,773,306.54
  5. Step 5: Solve for x
    x = 1,921,538,773,306.54/1,393,025.12
  6. Step 6: Final answer
    x = 1,379,399.95

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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.