Home / 1,253,815.20-1,730,271.38-680,855.39

Finding the Fourth Proportional to 1,253,815.20, 1,730,271.38 and 680,855.39

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Solution

The fourth proportional to 1,253,815.20, 1,730,271.38 and 680,855.39 is: 939,583.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,815.20 : 1,730,271.38 = 680,855.39 : x
  2. Step 2: Convert to fraction form
    1,253,815.20/1,730,271.38 = 680,855.39/x
  3. Step 3: Cross multiply
    1,253,815.20x = 1,730,271.38 × 680,855.39
  4. Step 4: Simplify right side
    1,253,815.20x = 1,178,064,583,180.10
  5. Step 5: Solve for x
    x = 1,178,064,583,180.10/1,253,815.20
  6. Step 6: Final answer
    x = 939,583.91

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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.