Home / 854,134.52-1,178,649.56-491,499.88

Finding the Fourth Proportional to 854,134.52, 1,178,649.56 and 491,499.88

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Solution

The fourth proportional to 854,134.52, 1,178,649.56 and 491,499.88 is: 678,237.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,134.52 : 1,178,649.56 = 491,499.88 : x
  2. Step 2: Convert to fraction form
    854,134.52/1,178,649.56 = 491,499.88/x
  3. Step 3: Cross multiply
    854,134.52x = 1,178,649.56 × 491,499.88
  4. Step 4: Simplify right side
    854,134.52x = 579,306,117,302.05
  5. Step 5: Solve for x
    x = 579,306,117,302.05/854,134.52
  6. Step 6: Final answer
    x = 678,237.57

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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.