Home / 2,078,205.12-2,866,866.48-1,262,191.68

Finding the Fourth Proportional to 2,078,205.12, 2,866,866.48 and 1,262,191.68

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Solution

The fourth proportional to 2,078,205.12, 2,866,866.48 and 1,262,191.68 is: 1,741,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,205.12 : 2,866,866.48 = 1,262,191.68 : x
  2. Step 2: Convert to fraction form
    2,078,205.12/2,866,866.48 = 1,262,191.68/x
  3. Step 3: Cross multiply
    2,078,205.12x = 2,866,866.48 × 1,262,191.68
  4. Step 4: Simplify right side
    2,078,205.12x = 3,618,535,018,726.89
  5. Step 5: Solve for x
    x = 3,618,535,018,726.89/2,078,205.12
  6. Step 6: Final answer
    x = 1,741,182.80

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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.