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Finding the Fourth Proportional to 443,501.30, 664,267.80 and 384,452.30

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Solution

The fourth proportional to 443,501.30, 664,267.80 and 384,452.30 is: 575,825.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,501.30 : 664,267.80 = 384,452.30 : x
  2. Step 2: Convert to fraction form
    443,501.30/664,267.80 = 384,452.30/x
  3. Step 3: Cross multiply
    443,501.30x = 664,267.80 × 384,452.30
  4. Step 4: Simplify right side
    443,501.30x = 255,379,283,525.94
  5. Step 5: Solve for x
    x = 255,379,283,525.94/443,501.30
  6. Step 6: Final answer
    x = 575,825.33

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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.