Home / 1,391,504.60-1,921,197.48-1,068,635.36

Finding the Fourth Proportional to 1,391,504.60, 1,921,197.48 and 1,068,635.36

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Solution

The fourth proportional to 1,391,504.60, 1,921,197.48 and 1,068,635.36 is: 1,475,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,504.60 : 1,921,197.48 = 1,068,635.36 : x
  2. Step 2: Convert to fraction form
    1,391,504.60/1,921,197.48 = 1,068,635.36/x
  3. Step 3: Cross multiply
    1,391,504.60x = 1,921,197.48 × 1,068,635.36
  4. Step 4: Simplify right side
    1,391,504.60x = 2,053,059,560,670.89
  5. Step 5: Solve for x
    x = 2,053,059,560,670.89/1,391,504.60
  6. Step 6: Final answer
    x = 1,475,424.20

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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.