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Finding the Fourth Proportional to 443,485.80, 664,244.55 and 384,436.80

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Solution

The fourth proportional to 443,485.80, 664,244.55 and 384,436.80 is: 575,802.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,485.80 : 664,244.55 = 384,436.80 : x
  2. Step 2: Convert to fraction form
    443,485.80/664,244.55 = 384,436.80/x
  3. Step 3: Cross multiply
    443,485.80x = 664,244.55 × 384,436.80
  4. Step 4: Simplify right side
    443,485.80x = 255,360,049,219.44
  5. Step 5: Solve for x
    x = 255,360,049,219.44/443,485.80
  6. Step 6: Final answer
    x = 575,802.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.