Home / 1,286,540-1,774,263.12-803,149.82

Finding the Fourth Proportional to 1,286,540, 1,774,263.12 and 803,149.82

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Solution

The fourth proportional to 1,286,540, 1,774,263.12 and 803,149.82 is: 1,107,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,540 : 1,774,263.12 = 803,149.82 : x
  2. Step 2: Convert to fraction form
    1,286,540/1,774,263.12 = 803,149.82/x
  3. Step 3: Cross multiply
    1,286,540x = 1,774,263.12 × 803,149.82
  4. Step 4: Simplify right side
    1,286,540x = 1,424,999,105,460.64
  5. Step 5: Solve for x
    x = 1,424,999,105,460.64/1,286,540
  6. Step 6: Final answer
    x = 1,107,621.30

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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.