Home / 2,129,486.90-2,938,733.48-1,162,619.66

Finding the Fourth Proportional to 2,129,486.90, 2,938,733.48 and 1,162,619.66

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Solution

The fourth proportional to 2,129,486.90, 2,938,733.48 and 1,162,619.66 is: 1,604,437.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,486.90 : 2,938,733.48 = 1,162,619.66 : x
  2. Step 2: Convert to fraction form
    2,129,486.90/2,938,733.48 = 1,162,619.66/x
  3. Step 3: Cross multiply
    2,129,486.90x = 2,938,733.48 × 1,162,619.66
  4. Step 4: Simplify right side
    2,129,486.90x = 3,416,629,319,348.22
  5. Step 5: Solve for x
    x = 3,416,629,319,348.22/2,129,486.90
  6. Step 6: Final answer
    x = 1,604,437.82

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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.