Home / 2,209,915.80-3,313,124.10-1,212,643.80

Finding the Fourth Proportional to 2,209,915.80, 3,313,124.10 and 1,212,643.80

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Solution

The fourth proportional to 2,209,915.80, 3,313,124.10 and 1,212,643.80 is: 1,818,005.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209,915.80 : 3,313,124.10 = 1,212,643.80 : x
  2. Step 2: Convert to fraction form
    2,209,915.80/3,313,124.10 = 1,212,643.80/x
  3. Step 3: Cross multiply
    2,209,915.80x = 3,313,124.10 × 1,212,643.80
  4. Step 4: Simplify right side
    2,209,915.80x = 4,017,639,398,495.58
  5. Step 5: Solve for x
    x = 4,017,639,398,495.58/2,209,915.80
  6. Step 6: Final answer
    x = 1,818,005.64

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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.