Home / 1,208,442.80-1,812,664.20-810,311.60

Finding the Fourth Proportional to 1,208,442.80, 1,812,664.20 and 810,311.60

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Solution

The fourth proportional to 1,208,442.80, 1,812,664.20 and 810,311.60 is: 1,215,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,442.80 : 1,812,664.20 = 810,311.60 : x
  2. Step 2: Convert to fraction form
    1,208,442.80/1,812,664.20 = 810,311.60/x
  3. Step 3: Cross multiply
    1,208,442.80x = 1,812,664.20 × 810,311.60
  4. Step 4: Simplify right side
    1,208,442.80x = 1,468,822,828,164.72
  5. Step 5: Solve for x
    x = 1,468,822,828,164.72/1,208,442.80
  6. Step 6: Final answer
    x = 1,215,467.40

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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.