Home / 1,219,639.42-1,831,134.96-621,002.86

Finding the Fourth Proportional to 1,219,639.42, 1,831,134.96 and 621,002.86

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Solution

The fourth proportional to 1,219,639.42, 1,831,134.96 and 621,002.86 is: 932,357.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,639.42 : 1,831,134.96 = 621,002.86 : x
  2. Step 2: Convert to fraction form
    1,219,639.42/1,831,134.96 = 621,002.86/x
  3. Step 3: Cross multiply
    1,219,639.42x = 1,831,134.96 × 621,002.86
  4. Step 4: Simplify right side
    1,219,639.42x = 1,137,140,047,205.99
  5. Step 5: Solve for x
    x = 1,137,140,047,205.99/1,219,639.42
  6. Step 6: Final answer
    x = 932,357.57

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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.