Home / 1,097,321.80-1,642,775.10-782,393.80

Finding the Fourth Proportional to 1,097,321.80, 1,642,775.10 and 782,393.80

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Solution

The fourth proportional to 1,097,321.80, 1,642,775.10 and 782,393.80 is: 1,171,303.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,321.80 : 1,642,775.10 = 782,393.80 : x
  2. Step 2: Convert to fraction form
    1,097,321.80/1,642,775.10 = 782,393.80/x
  3. Step 3: Cross multiply
    1,097,321.80x = 1,642,775.10 × 782,393.80
  4. Step 4: Simplify right side
    1,097,321.80x = 1,285,297,053,034.38
  5. Step 5: Solve for x
    x = 1,285,297,053,034.38/1,097,321.80
  6. Step 6: Final answer
    x = 1,171,303.67

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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.