Home / 630,213.81-869,694.53-343,733.01

Finding the Fourth Proportional to 630,213.81, 869,694.53 and 343,733.01

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Solution

The fourth proportional to 630,213.81, 869,694.53 and 343,733.01 is: 474,351.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,213.81 : 869,694.53 = 343,733.01 : x
  2. Step 2: Convert to fraction form
    630,213.81/869,694.53 = 343,733.01/x
  3. Step 3: Cross multiply
    630,213.81x = 869,694.53 × 343,733.01
  4. Step 4: Simplify right side
    630,213.81x = 298,942,718,577.44
  5. Step 5: Solve for x
    x = 298,942,718,577.44/630,213.81
  6. Step 6: Final answer
    x = 474,351.27

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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.