Home / 990,906.40-1,486,359.60-836,941.60

Finding the Fourth Proportional to 990,906.40, 1,486,359.60 and 836,941.60

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Solution

The fourth proportional to 990,906.40, 1,486,359.60 and 836,941.60 is: 1,255,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,906.40 : 1,486,359.60 = 836,941.60 : x
  2. Step 2: Convert to fraction form
    990,906.40/1,486,359.60 = 836,941.60/x
  3. Step 3: Cross multiply
    990,906.40x = 1,486,359.60 × 836,941.60
  4. Step 4: Simplify right side
    990,906.40x = 1,243,996,181,799.36
  5. Step 5: Solve for x
    x = 1,243,996,181,799.36/990,906.40
  6. Step 6: Final answer
    x = 1,255,412.40

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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.