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Finding the Fourth Proportional to 443,479.73, 612,001.80 and 239,530.55

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Solution

The fourth proportional to 443,479.73, 612,001.80 and 239,530.55 is: 330,552.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,479.73 : 612,001.80 = 239,530.55 : x
  2. Step 2: Convert to fraction form
    443,479.73/612,001.80 = 239,530.55/x
  3. Step 3: Cross multiply
    443,479.73x = 612,001.80 × 239,530.55
  4. Step 4: Simplify right side
    443,479.73x = 146,593,127,754.99
  5. Step 5: Solve for x
    x = 146,593,127,754.99/443,479.73
  6. Step 6: Final answer
    x = 330,552.04

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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.