Home / 985,559.40-1,477,245.60-386,321.40

Finding the Fourth Proportional to 985,559.40, 1,477,245.60 and 386,321.40

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Solution

The fourth proportional to 985,559.40, 1,477,245.60 and 386,321.40 is: 579,053.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,559.40 : 1,477,245.60 = 386,321.40 : x
  2. Step 2: Convert to fraction form
    985,559.40/1,477,245.60 = 386,321.40/x
  3. Step 3: Cross multiply
    985,559.40x = 1,477,245.60 × 386,321.40
  4. Step 4: Simplify right side
    985,559.40x = 570,691,588,335.84
  5. Step 5: Solve for x
    x = 570,691,588,335.84/985,559.40
  6. Step 6: Final answer
    x = 579,053.47

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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.