Home / 854,213.64-1,179,111.69-491,781.95

Finding the Fourth Proportional to 854,213.64, 1,179,111.69 and 491,781.95

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Solution

The fourth proportional to 854,213.64, 1,179,111.69 and 491,781.95 is: 678,830.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,213.64 : 1,179,111.69 = 491,781.95 : x
  2. Step 2: Convert to fraction form
    854,213.64/1,179,111.69 = 491,781.95/x
  3. Step 3: Cross multiply
    854,213.64x = 1,179,111.69 × 491,781.95
  4. Step 4: Simplify right side
    854,213.64x = 579,865,846,176.00
  5. Step 5: Solve for x
    x = 579,865,846,176.00/854,213.64
  6. Step 6: Final answer
    x = 678,830.00

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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.