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Finding the Fourth Proportional to 854,594.64, 1,179,338.40 and 491,886

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Solution

The fourth proportional to 854,594.64, 1,179,338.40 and 491,886 is: 678,801.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,594.64 : 1,179,338.40 = 491,886 : x
  2. Step 2: Convert to fraction form
    854,594.64/1,179,338.40 = 491,886/x
  3. Step 3: Cross multiply
    854,594.64x = 1,179,338.40 × 491,886
  4. Step 4: Simplify right side
    854,594.64x = 580,100,048,222.40
  5. Step 5: Solve for x
    x = 580,100,048,222.40/854,594.64
  6. Step 6: Final answer
    x = 678,801.41

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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.