Home / 1,118,739.64-1,678,352.46-408,766.60

Finding the Fourth Proportional to 1,118,739.64, 1,678,352.46 and 408,766.60

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Solution

The fourth proportional to 1,118,739.64, 1,678,352.46 and 408,766.60 is: 613,238.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,739.64 : 1,678,352.46 = 408,766.60 : x
  2. Step 2: Convert to fraction form
    1,118,739.64/1,678,352.46 = 408,766.60/x
  3. Step 3: Cross multiply
    1,118,739.64x = 1,678,352.46 × 408,766.60
  4. Step 4: Simplify right side
    1,118,739.64x = 686,054,428,675.84
  5. Step 5: Solve for x
    x = 686,054,428,675.84/1,118,739.64
  6. Step 6: Final answer
    x = 613,238.69

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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.