Home / 2,990,632.20-4,486,985.10-1,308,942.60

Finding the Fourth Proportional to 2,990,632.20, 4,486,985.10 and 1,308,942.60

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Solution

The fourth proportional to 2,990,632.20, 4,486,985.10 and 1,308,942.60 is: 1,963,867.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,632.20 : 4,486,985.10 = 1,308,942.60 : x
  2. Step 2: Convert to fraction form
    2,990,632.20/4,486,985.10 = 1,308,942.60/x
  3. Step 3: Cross multiply
    2,990,632.20x = 4,486,985.10 × 1,308,942.60
  4. Step 4: Simplify right side
    2,990,632.20x = 5,873,205,942,955.26
  5. Step 5: Solve for x
    x = 5,873,205,942,955.26/2,990,632.20
  6. Step 6: Final answer
    x = 1,963,867.69

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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.