Home / 1,271,071.43-1,754,072.58-690,290.49

Finding the Fourth Proportional to 1,271,071.43, 1,754,072.58 and 690,290.49

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Solution

The fourth proportional to 1,271,071.43, 1,754,072.58 and 690,290.49 is: 952,597.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,071.43 : 1,754,072.58 = 690,290.49 : x
  2. Step 2: Convert to fraction form
    1,271,071.43/1,754,072.58 = 690,290.49/x
  3. Step 3: Cross multiply
    1,271,071.43x = 1,754,072.58 × 690,290.49
  4. Step 4: Simplify right side
    1,271,071.43x = 1,210,819,620,743.76
  5. Step 5: Solve for x
    x = 1,210,819,620,743.76/1,271,071.43
  6. Step 6: Final answer
    x = 952,597.62

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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.