Home / 2,698,689.80-4,048,488.30-805,622.60

Finding the Fourth Proportional to 2,698,689.80, 4,048,488.30 and 805,622.60

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Solution

The fourth proportional to 2,698,689.80, 4,048,488.30 and 805,622.60 is: 1,208,569.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698,689.80 : 4,048,488.30 = 805,622.60 : x
  2. Step 2: Convert to fraction form
    2,698,689.80/4,048,488.30 = 805,622.60/x
  3. Step 3: Cross multiply
    2,698,689.80x = 4,048,488.30 × 805,622.60
  4. Step 4: Simplify right side
    2,698,689.80x = 3,261,553,670,315.58
  5. Step 5: Solve for x
    x = 3,261,553,670,315.58/2,698,689.80
  6. Step 6: Final answer
    x = 1,208,569.31

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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.