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Finding the Fourth Proportional to 666,539.75, 919,824.37 and 360,616.28

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Solution

The fourth proportional to 666,539.75, 919,824.37 and 360,616.28 is: 497,650.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,539.75 : 919,824.37 = 360,616.28 : x
  2. Step 2: Convert to fraction form
    666,539.75/919,824.37 = 360,616.28/x
  3. Step 3: Cross multiply
    666,539.75x = 919,824.37 × 360,616.28
  4. Step 4: Simplify right side
    666,539.75x = 331,703,637,062.08
  5. Step 5: Solve for x
    x = 331,703,637,062.08/666,539.75
  6. Step 6: Final answer
    x = 497,650.19

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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.