Home / 841,865.88-1,161,775.96-479,289.73

Finding the Fourth Proportional to 841,865.88, 1,161,775.96 and 479,289.73

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Solution

The fourth proportional to 841,865.88, 1,161,775.96 and 479,289.73 is: 661,420.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,865.88 : 1,161,775.96 = 479,289.73 : x
  2. Step 2: Convert to fraction form
    841,865.88/1,161,775.96 = 479,289.73/x
  3. Step 3: Cross multiply
    841,865.88x = 1,161,775.96 × 479,289.73
  4. Step 4: Simplify right side
    841,865.88x = 556,827,286,960.56
  5. Step 5: Solve for x
    x = 556,827,286,960.56/841,865.88
  6. Step 6: Final answer
    x = 661,420.43

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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.