Home / 1,915,281.69-2,643,096.74-1,055,823.09

Finding the Fourth Proportional to 1,915,281.69, 2,643,096.74 and 1,055,823.09

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Solution

The fourth proportional to 1,915,281.69, 2,643,096.74 and 1,055,823.09 is: 1,457,040.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,281.69 : 2,643,096.74 = 1,055,823.09 : x
  2. Step 2: Convert to fraction form
    1,915,281.69/2,643,096.74 = 1,055,823.09/x
  3. Step 3: Cross multiply
    1,915,281.69x = 2,643,096.74 × 1,055,823.09
  4. Step 4: Simplify right side
    1,915,281.69x = 2,790,642,567,195.73
  5. Step 5: Solve for x
    x = 2,790,642,567,195.73/1,915,281.69
  6. Step 6: Final answer
    x = 1,457,040.28

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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.