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Finding the Fourth Proportional to 577,291, 796,659.59 and 322,642.19

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Solution

The fourth proportional to 577,291, 796,659.59 and 322,642.19 is: 445,245.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,291 : 796,659.59 = 322,642.19 : x
  2. Step 2: Convert to fraction form
    577,291/796,659.59 = 322,642.19/x
  3. Step 3: Cross multiply
    577,291x = 796,659.59 × 322,642.19
  4. Step 4: Simplify right side
    577,291x = 257,035,994,802.10
  5. Step 5: Solve for x
    x = 257,035,994,802.10/577,291
  6. Step 6: Final answer
    x = 445,245.11

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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.