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Finding the Fourth Proportional to 455,379.63, 628,479.24 and 264,393.02

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Solution

The fourth proportional to 455,379.63, 628,479.24 and 264,393.02 is: 364,894.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,379.63 : 628,479.24 = 264,393.02 : x
  2. Step 2: Convert to fraction form
    455,379.63/628,479.24 = 264,393.02/x
  3. Step 3: Cross multiply
    455,379.63x = 628,479.24 × 264,393.02
  4. Step 4: Simplify right side
    455,379.63x = 166,165,523,709.29
  5. Step 5: Solve for x
    x = 166,165,523,709.29/455,379.63
  6. Step 6: Final answer
    x = 364,894.51

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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.