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Finding the Fourth Proportional to 480,893.95, 664,198.30 and 384,431.87

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Solution

The fourth proportional to 480,893.95, 664,198.30 and 384,431.87 is: 530,967.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,893.95 : 664,198.30 = 384,431.87 : x
  2. Step 2: Convert to fraction form
    480,893.95/664,198.30 = 384,431.87/x
  3. Step 3: Cross multiply
    480,893.95x = 664,198.30 × 384,431.87
  4. Step 4: Simplify right side
    480,893.95x = 255,338,991,198.83
  5. Step 5: Solve for x
    x = 255,338,991,198.83/480,893.95
  6. Step 6: Final answer
    x = 530,967.36

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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.