Home / 1,099,315.80-1,649,265.30-389,269.80

Finding the Fourth Proportional to 1,099,315.80, 1,649,265.30 and 389,269.80

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Solution

The fourth proportional to 1,099,315.80, 1,649,265.30 and 389,269.80 is: 584,007.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,315.80 : 1,649,265.30 = 389,269.80 : x
  2. Step 2: Convert to fraction form
    1,099,315.80/1,649,265.30 = 389,269.80/x
  3. Step 3: Cross multiply
    1,099,315.80x = 1,649,265.30 × 389,269.80
  4. Step 4: Simplify right side
    1,099,315.80x = 642,009,173,477.94
  5. Step 5: Solve for x
    x = 642,009,173,477.94/1,099,315.80
  6. Step 6: Final answer
    x = 584,007.96

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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.