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Finding the Fourth Proportional to 469,779.66, 648,310.32 and 276,151.86

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Solution

The fourth proportional to 469,779.66, 648,310.32 and 276,151.86 is: 381,098.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,779.66 : 648,310.32 = 276,151.86 : x
  2. Step 2: Convert to fraction form
    469,779.66/648,310.32 = 276,151.86/x
  3. Step 3: Cross multiply
    469,779.66x = 648,310.32 × 276,151.86
  4. Step 4: Simplify right side
    469,779.66x = 179,032,100,725.20
  5. Step 5: Solve for x
    x = 179,032,100,725.20/469,779.66
  6. Step 6: Final answer
    x = 381,098.03

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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.