Home / 1,512,511.20-2,266,628.40-838,889.28

Finding the Fourth Proportional to 1,512,511.20, 2,266,628.40 and 838,889.28

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Solution

The fourth proportional to 1,512,511.20, 2,266,628.40 and 838,889.28 is: 1,257,147.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,511.20 : 2,266,628.40 = 838,889.28 : x
  2. Step 2: Convert to fraction form
    1,512,511.20/2,266,628.40 = 838,889.28/x
  3. Step 3: Cross multiply
    1,512,511.20x = 2,266,628.40 × 838,889.28
  4. Step 4: Simplify right side
    1,512,511.20x = 1,901,450,266,503.55
  5. Step 5: Solve for x
    x = 1,901,450,266,503.55/1,512,511.20
  6. Step 6: Final answer
    x = 1,257,147.89

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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.