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Finding the Fourth Proportional to 666,449.66, 919,697.76 and 360,525.32

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Solution

The fourth proportional to 666,449.66, 919,697.76 and 360,525.32 is: 497,523.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,449.66 : 919,697.76 = 360,525.32 : x
  2. Step 2: Convert to fraction form
    666,449.66/919,697.76 = 360,525.32/x
  3. Step 3: Cross multiply
    666,449.66x = 919,697.76 × 360,525.32
  4. Step 4: Simplify right side
    666,449.66x = 331,574,324,628.79
  5. Step 5: Solve for x
    x = 331,574,324,628.79/666,449.66
  6. Step 6: Final answer
    x = 497,523.44

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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.