Home / 1,099,487.70-1,648,028.70-389,150.10

Finding the Fourth Proportional to 1,099,487.70, 1,648,028.70 and 389,150.10

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Solution

The fourth proportional to 1,099,487.70, 1,648,028.70 and 389,150.10 is: 583,299.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,487.70 : 1,648,028.70 = 389,150.10 : x
  2. Step 2: Convert to fraction form
    1,099,487.70/1,648,028.70 = 389,150.10/x
  3. Step 3: Cross multiply
    1,099,487.70x = 1,648,028.70 × 389,150.10
  4. Step 4: Simplify right side
    1,099,487.70x = 641,330,533,407.87
  5. Step 5: Solve for x
    x = 641,330,533,407.87/1,099,487.70
  6. Step 6: Final answer
    x = 583,299.42

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1.5x scale

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.