Home / 841,964.72-1,161,912.45-479,388.74

Finding the Fourth Proportional to 841,964.72, 1,161,912.45 and 479,388.74

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Solution

The fourth proportional to 841,964.72, 1,161,912.45 and 479,388.74 is: 661,557.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,964.72 : 1,161,912.45 = 479,388.74 : x
  2. Step 2: Convert to fraction form
    841,964.72/1,161,912.45 = 479,388.74/x
  3. Step 3: Cross multiply
    841,964.72x = 1,161,912.45 × 479,388.74
  4. Step 4: Simplify right side
    841,964.72x = 557,007,739,586.25
  5. Step 5: Solve for x
    x = 557,007,739,586.25/841,964.72
  6. Step 6: Final answer
    x = 661,557.11

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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.