Home / 1,099,344.80-1,648,844.40-389,271.20

Finding the Fourth Proportional to 1,099,344.80, 1,648,844.40 and 389,271.20

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Solution

The fourth proportional to 1,099,344.80, 1,648,844.40 and 389,271.20 is: 583,845.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,344.80 : 1,648,844.40 = 389,271.20 : x
  2. Step 2: Convert to fraction form
    1,099,344.80/1,648,844.40 = 389,271.20/x
  3. Step 3: Cross multiply
    1,099,344.80x = 1,648,844.40 × 389,271.20
  4. Step 4: Simplify right side
    1,099,344.80x = 641,847,638,201.28
  5. Step 5: Solve for x
    x = 641,847,638,201.28/1,099,344.80
  6. Step 6: Final answer
    x = 583,845.61

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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.