Home / 758,643.82-1,137,811.27-278,706.67

Finding the Fourth Proportional to 758,643.82, 1,137,811.27 and 278,706.67

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Solution

The fourth proportional to 758,643.82, 1,137,811.27 and 278,706.67 is: 418,003.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,643.82 : 1,137,811.27 = 278,706.67 : x
  2. Step 2: Convert to fraction form
    758,643.82/1,137,811.27 = 278,706.67/x
  3. Step 3: Cross multiply
    758,643.82x = 1,137,811.27 × 278,706.67
  4. Step 4: Simplify right side
    758,643.82x = 317,115,593,531.64
  5. Step 5: Solve for x
    x = 317,115,593,531.64/758,643.82
  6. Step 6: Final answer
    x = 418,003.26

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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.