Home / 1,099,916.70-1,648,672.20-389,579.10

Finding the Fourth Proportional to 1,099,916.70, 1,648,672.20 and 389,579.10

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Solution

The fourth proportional to 1,099,916.70, 1,648,672.20 and 389,579.10 is: 583,942.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,916.70 : 1,648,672.20 = 389,579.10 : x
  2. Step 2: Convert to fraction form
    1,099,916.70/1,648,672.20 = 389,579.10/x
  3. Step 3: Cross multiply
    1,099,916.70x = 1,648,672.20 × 389,579.10
  4. Step 4: Simplify right side
    1,099,916.70x = 642,288,231,871.02
  5. Step 5: Solve for x
    x = 642,288,231,871.02/1,099,916.70
  6. Step 6: Final answer
    x = 583,942.61

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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.