Home / 1,445,837.80-2,168,756.70-1,211,391.40

Finding the Fourth Proportional to 1,445,837.80, 2,168,756.70 and 1,211,391.40

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Solution

The fourth proportional to 1,445,837.80, 2,168,756.70 and 1,211,391.40 is: 1,817,087.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445,837.80 : 2,168,756.70 = 1,211,391.40 : x
  2. Step 2: Convert to fraction form
    1,445,837.80/2,168,756.70 = 1,211,391.40/x
  3. Step 3: Cross multiply
    1,445,837.80x = 2,168,756.70 × 1,211,391.40
  4. Step 4: Simplify right side
    1,445,837.80x = 2,627,213,215,072.38
  5. Step 5: Solve for x
    x = 2,627,213,215,072.38/1,445,837.80
  6. Step 6: Final answer
    x = 1,817,087.10

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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.