Home / 1,382,454.63-1,907,760.09-770,570.91

Finding the Fourth Proportional to 1,382,454.63, 1,907,760.09 and 770,570.91

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Solution

The fourth proportional to 1,382,454.63, 1,907,760.09 and 770,570.91 is: 1,063,372.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,454.63 : 1,907,760.09 = 770,570.91 : x
  2. Step 2: Convert to fraction form
    1,382,454.63/1,907,760.09 = 770,570.91/x
  3. Step 3: Cross multiply
    1,382,454.63x = 1,907,760.09 × 770,570.91
  4. Step 4: Simplify right side
    1,382,454.63x = 1,470,064,428,612.98
  5. Step 5: Solve for x
    x = 1,470,064,428,612.98/1,382,454.63
  6. Step 6: Final answer
    x = 1,063,372.64

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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.