Home / 1,258,515.45-1,736,742.42-685,555.65

Finding the Fourth Proportional to 1,258,515.45, 1,736,742.42 and 685,555.65

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Solution

The fourth proportional to 1,258,515.45, 1,736,742.42 and 685,555.65 is: 946,061.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,515.45 : 1,736,742.42 = 685,555.65 : x
  2. Step 2: Convert to fraction form
    1,258,515.45/1,736,742.42 = 685,555.65/x
  3. Step 3: Cross multiply
    1,258,515.45x = 1,736,742.42 × 685,555.65
  4. Step 4: Simplify right side
    1,258,515.45x = 1,190,633,578,625.67
  5. Step 5: Solve for x
    x = 1,190,633,578,625.67/1,258,515.45
  6. Step 6: Final answer
    x = 946,061.95

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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.