Home / 1,272,877.20-1,909,315.80-1,099,666.80

Finding the Fourth Proportional to 1,272,877.20, 1,909,315.80 and 1,099,666.80

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Solution

The fourth proportional to 1,272,877.20, 1,909,315.80 and 1,099,666.80 is: 1,649,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,877.20 : 1,909,315.80 = 1,099,666.80 : x
  2. Step 2: Convert to fraction form
    1,272,877.20/1,909,315.80 = 1,099,666.80/x
  3. Step 3: Cross multiply
    1,272,877.20x = 1,909,315.80 × 1,099,666.80
  4. Step 4: Simplify right side
    1,272,877.20x = 2,099,611,195,975.44
  5. Step 5: Solve for x
    x = 2,099,611,195,975.44/1,272,877.20
  6. Step 6: Final answer
    x = 1,649,500.20

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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.