Home / 921,646.20-1,383,344.10-788,676.60

Finding the Fourth Proportional to 921,646.20, 1,383,344.10 and 788,676.60

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Solution

The fourth proportional to 921,646.20, 1,383,344.10 and 788,676.60 is: 1,183,763.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,646.20 : 1,383,344.10 = 788,676.60 : x
  2. Step 2: Convert to fraction form
    921,646.20/1,383,344.10 = 788,676.60/x
  3. Step 3: Cross multiply
    921,646.20x = 1,383,344.10 × 788,676.60
  4. Step 4: Simplify right side
    921,646.20x = 1,091,011,121,418.06
  5. Step 5: Solve for x
    x = 1,091,011,121,418.06/921,646.20
  6. Step 6: Final answer
    x = 1,183,763.49

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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.