Home / 1,993,170.36-2,990,228.58-645,333.06

Finding the Fourth Proportional to 1,993,170.36, 2,990,228.58 and 645,333.06

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Solution

The fourth proportional to 1,993,170.36, 2,990,228.58 and 645,333.06 is: 968,152.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,170.36 : 2,990,228.58 = 645,333.06 : x
  2. Step 2: Convert to fraction form
    1,993,170.36/2,990,228.58 = 645,333.06/x
  3. Step 3: Cross multiply
    1,993,170.36x = 2,990,228.58 × 645,333.06
  4. Step 4: Simplify right side
    1,993,170.36x = 1,929,693,359,630.86
  5. Step 5: Solve for x
    x = 1,929,693,359,630.86/1,993,170.36
  6. Step 6: Final answer
    x = 968,152.75

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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.