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Finding the Fourth Proportional to 841,321.28, 1,161,049 and 478,797.28

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Solution

The fourth proportional to 841,321.28, 1,161,049 and 478,797.28 is: 660,754.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,321.28 : 1,161,049 = 478,797.28 : x
  2. Step 2: Convert to fraction form
    841,321.28/1,161,049 = 478,797.28/x
  3. Step 3: Cross multiply
    841,321.28x = 1,161,049 × 478,797.28
  4. Step 4: Simplify right side
    841,321.28x = 555,907,103,146.72
  5. Step 5: Solve for x
    x = 555,907,103,146.72/841,321.28
  6. Step 6: Final answer
    x = 660,754.83

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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.