Home / 1,213,457.95-1,820,186.93-1,138,662.55

Finding the Fourth Proportional to 1,213,457.95, 1,820,186.93 and 1,138,662.55

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Solution

The fourth proportional to 1,213,457.95, 1,820,186.93 and 1,138,662.55 is: 1,707,993.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,457.95 : 1,820,186.93 = 1,138,662.55 : x
  2. Step 2: Convert to fraction form
    1,213,457.95/1,820,186.93 = 1,138,662.55/x
  3. Step 3: Cross multiply
    1,213,457.95x = 1,820,186.93 × 1,138,662.55
  4. Step 4: Simplify right side
    1,213,457.95x = 2,072,578,691,190.47
  5. Step 5: Solve for x
    x = 2,072,578,691,190.47/1,213,457.95
  6. Step 6: Final answer
    x = 1,707,993.83

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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.