Home / 854,215.15-1,179,113.76-491,783.45

Finding the Fourth Proportional to 854,215.15, 1,179,113.76 and 491,783.45

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Solution

The fourth proportional to 854,215.15, 1,179,113.76 and 491,783.45 is: 678,832.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,215.15 : 1,179,113.76 = 491,783.45 : x
  2. Step 2: Convert to fraction form
    854,215.15/1,179,113.76 = 491,783.45/x
  3. Step 3: Cross multiply
    854,215.15x = 1,179,113.76 × 491,783.45
  4. Step 4: Simplify right side
    854,215.15x = 579,868,632,835.27
  5. Step 5: Solve for x
    x = 579,868,632,835.27/854,215.15
  6. Step 6: Final answer
    x = 678,832.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.