Home / 630,245.36-869,741.32-343,771.60

Finding the Fourth Proportional to 630,245.36, 869,741.32 and 343,771.60

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Solution

The fourth proportional to 630,245.36, 869,741.32 and 343,771.60 is: 474,406.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,245.36 : 869,741.32 = 343,771.60 : x
  2. Step 2: Convert to fraction form
    630,245.36/869,741.32 = 343,771.60/x
  3. Step 3: Cross multiply
    630,245.36x = 869,741.32 × 343,771.60
  4. Step 4: Simplify right side
    630,245.36x = 298,992,365,162.51
  5. Step 5: Solve for x
    x = 298,992,365,162.51/630,245.36
  6. Step 6: Final answer
    x = 474,406.29

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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.