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Finding the Fourth Proportional to 443,873.07, 612,063.27 and 282,521.88

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Solution

The fourth proportional to 443,873.07, 612,063.27 and 282,521.88 is: 389,573.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,873.07 : 612,063.27 = 282,521.88 : x
  2. Step 2: Convert to fraction form
    443,873.07/612,063.27 = 282,521.88/x
  3. Step 3: Cross multiply
    443,873.07x = 612,063.27 × 282,521.88
  4. Step 4: Simplify right side
    443,873.07x = 172,921,265,719.35
  5. Step 5: Solve for x
    x = 172,921,265,719.35/443,873.07
  6. Step 6: Final answer
    x = 389,573.68

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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.