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Finding the Fourth Proportional to 666,449.62, 919,697.68 and 360,525.23

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Solution

The fourth proportional to 666,449.62, 919,697.68 and 360,525.23 is: 497,523.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,449.62 : 919,697.68 = 360,525.23 : x
  2. Step 2: Convert to fraction form
    666,449.62/919,697.68 = 360,525.23/x
  3. Step 3: Cross multiply
    666,449.62x = 919,697.68 × 360,525.23
  4. Step 4: Simplify right side
    666,449.62x = 331,574,213,013.98
  5. Step 5: Solve for x
    x = 331,574,213,013.98/666,449.62
  6. Step 6: Final answer
    x = 497,523.30

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1.5x scale

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.