Home / 2,116,454.40-2,920,730.68-1,245,481.60

Finding the Fourth Proportional to 2,116,454.40, 2,920,730.68 and 1,245,481.60

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Solution

The fourth proportional to 2,116,454.40, 2,920,730.68 and 1,245,481.60 is: 1,718,778.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116,454.40 : 2,920,730.68 = 1,245,481.60 : x
  2. Step 2: Convert to fraction form
    2,116,454.40/2,920,730.68 = 1,245,481.60/x
  3. Step 3: Cross multiply
    2,116,454.40x = 2,920,730.68 × 1,245,481.60
  4. Step 4: Simplify right side
    2,116,454.40x = 3,637,716,320,495.49
  5. Step 5: Solve for x
    x = 3,637,716,320,495.49/2,116,454.40
  6. Step 6: Final answer
    x = 1,718,778.50

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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.