Home / 990,400.61-1,366,758.56-582,519.71

Finding the Fourth Proportional to 990,400.61, 1,366,758.56 and 582,519.71

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Solution

The fourth proportional to 990,400.61, 1,366,758.56 and 582,519.71 is: 803,880.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,400.61 : 1,366,758.56 = 582,519.71 : x
  2. Step 2: Convert to fraction form
    990,400.61/1,366,758.56 = 582,519.71/x
  3. Step 3: Cross multiply
    990,400.61x = 1,366,758.56 × 582,519.71
  4. Step 4: Simplify right side
    990,400.61x = 796,163,800,011.22
  5. Step 5: Solve for x
    x = 796,163,800,011.22/990,400.61
  6. Step 6: Final answer
    x = 803,880.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.