Home / 1,103,999.40-1,655,999.10-766,326.60

Finding the Fourth Proportional to 1,103,999.40, 1,655,999.10 and 766,326.60

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Solution

The fourth proportional to 1,103,999.40, 1,655,999.10 and 766,326.60 is: 1,149,489.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,999.40 : 1,655,999.10 = 766,326.60 : x
  2. Step 2: Convert to fraction form
    1,103,999.40/1,655,999.10 = 766,326.60/x
  3. Step 3: Cross multiply
    1,103,999.40x = 1,655,999.10 × 766,326.60
  4. Step 4: Simplify right side
    1,103,999.40x = 1,269,036,159,906.06
  5. Step 5: Solve for x
    x = 1,269,036,159,906.06/1,103,999.40
  6. Step 6: Final answer
    x = 1,149,489.90

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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.