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Finding the Fourth Proportional to 840,992.88, 1,160,720.64 and 501,483

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Solution

The fourth proportional to 840,992.88, 1,160,720.64 and 501,483 is: 692,136.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,992.88 : 1,160,720.64 = 501,483 : x
  2. Step 2: Convert to fraction form
    840,992.88/1,160,720.64 = 501,483/x
  3. Step 3: Cross multiply
    840,992.88x = 1,160,720.64 × 501,483
  4. Step 4: Simplify right side
    840,992.88x = 582,081,668,709.12
  5. Step 5: Solve for x
    x = 582,081,668,709.12/840,992.88
  6. Step 6: Final answer
    x = 692,136.26

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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.