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Finding the Fourth Proportional to 488,464.64, 732,690.35 and 218,521.41

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Solution

The fourth proportional to 488,464.64, 732,690.35 and 218,521.41 is: 327,779.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,464.64 : 732,690.35 = 218,521.41 : x
  2. Step 2: Convert to fraction form
    488,464.64/732,690.35 = 218,521.41/x
  3. Step 3: Cross multiply
    488,464.64x = 732,690.35 × 218,521.41
  4. Step 4: Simplify right side
    488,464.64x = 160,108,529,331.43
  5. Step 5: Solve for x
    x = 160,108,529,331.43/488,464.64
  6. Step 6: Final answer
    x = 327,779.16

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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.