Home / 1,219,309.86-1,830,099.62-620,719.14

Finding the Fourth Proportional to 1,219,309.86, 1,830,099.62 and 620,719.14

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Solution

The fourth proportional to 1,219,309.86, 1,830,099.62 and 620,719.14 is: 931,656.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,309.86 : 1,830,099.62 = 620,719.14 : x
  2. Step 2: Convert to fraction form
    1,219,309.86/1,830,099.62 = 620,719.14/x
  3. Step 3: Cross multiply
    1,219,309.86x = 1,830,099.62 × 620,719.14
  4. Step 4: Simplify right side
    1,219,309.86x = 1,135,977,862,240.73
  5. Step 5: Solve for x
    x = 1,135,977,862,240.73/1,219,309.86
  6. Step 6: Final answer
    x = 931,656.42

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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.