Home / 1,290,047.46-1,924,186.56-1,120,232.39

Finding the Fourth Proportional to 1,290,047.46, 1,924,186.56 and 1,120,232.39

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Solution

The fourth proportional to 1,290,047.46, 1,924,186.56 and 1,120,232.39 is: 1,670,896.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,047.46 : 1,924,186.56 = 1,120,232.39 : x
  2. Step 2: Convert to fraction form
    1,290,047.46/1,924,186.56 = 1,120,232.39/x
  3. Step 3: Cross multiply
    1,290,047.46x = 1,924,186.56 × 1,120,232.39
  4. Step 4: Simplify right side
    1,290,047.46x = 2,155,536,099,293.75
  5. Step 5: Solve for x
    x = 2,155,536,099,293.75/1,290,047.46
  6. Step 6: Final answer
    x = 1,670,896.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.