Home / 1,270,260-1,905,764.30-511,711.12

Finding the Fourth Proportional to 1,270,260, 1,905,764.30 and 511,711.12

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Solution

The fourth proportional to 1,270,260, 1,905,764.30 and 511,711.12 is: 767,717.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,260 : 1,905,764.30 = 511,711.12 : x
  2. Step 2: Convert to fraction form
    1,270,260/1,905,764.30 = 511,711.12/x
  3. Step 3: Cross multiply
    1,270,260x = 1,905,764.30 × 511,711.12
  4. Step 4: Simplify right side
    1,270,260x = 975,200,790,072.36
  5. Step 5: Solve for x
    x = 975,200,790,072.36/1,270,260
  6. Step 6: Final answer
    x = 767,717.47

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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.