Home / 630,238.36-869,731.64-343,764.60

Finding the Fourth Proportional to 630,238.36, 869,731.64 and 343,764.60

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Solution

The fourth proportional to 630,238.36, 869,731.64 and 343,764.60 is: 474,396.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,238.36 : 869,731.64 = 343,764.60 : x
  2. Step 2: Convert to fraction form
    630,238.36/869,731.64 = 343,764.60/x
  3. Step 3: Cross multiply
    630,238.36x = 869,731.64 × 343,764.60
  4. Step 4: Simplify right side
    630,238.36x = 298,982,949,331.94
  5. Step 5: Solve for x
    x = 298,982,949,331.94/630,238.36
  6. Step 6: Final answer
    x = 474,396.62

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1.5x scale

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.