Home / 1,091,121.20-1,505,225.72-847,738.26

Finding the Fourth Proportional to 1,091,121.20, 1,505,225.72 and 847,738.26

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Solution

The fourth proportional to 1,091,121.20, 1,505,225.72 and 847,738.26 is: 1,169,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,121.20 : 1,505,225.72 = 847,738.26 : x
  2. Step 2: Convert to fraction form
    1,091,121.20/1,505,225.72 = 847,738.26/x
  3. Step 3: Cross multiply
    1,091,121.20x = 1,505,225.72 × 847,738.26
  4. Step 4: Simplify right side
    1,091,121.20x = 1,276,037,432,780.05
  5. Step 5: Solve for x
    x = 1,276,037,432,780.05/1,091,121.20
  6. Step 6: Final answer
    x = 1,169,473.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.