Home / 1,993,200.24-2,990,276.64-645,364.30

Finding the Fourth Proportional to 1,993,200.24, 2,990,276.64 and 645,364.30

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Solution

The fourth proportional to 1,993,200.24, 2,990,276.64 and 645,364.30 is: 968,200.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,200.24 : 2,990,276.64 = 645,364.30 : x
  2. Step 2: Convert to fraction form
    1,993,200.24/2,990,276.64 = 645,364.30/x
  3. Step 3: Cross multiply
    1,993,200.24x = 2,990,276.64 × 645,364.30
  4. Step 4: Simplify right side
    1,993,200.24x = 1,929,817,790,579.95
  5. Step 5: Solve for x
    x = 1,929,817,790,579.95/1,993,200.24
  6. Step 6: Final answer
    x = 968,200.66

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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.