Home / 854,126.44-1,178,648.24-472,128.64

Finding the Fourth Proportional to 854,126.44, 1,178,648.24 and 472,128.64

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Solution

The fourth proportional to 854,126.44, 1,178,648.24 and 472,128.64 is: 651,511.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,126.44 : 1,178,648.24 = 472,128.64 : x
  2. Step 2: Convert to fraction form
    854,126.44/1,178,648.24 = 472,128.64/x
  3. Step 3: Cross multiply
    854,126.44x = 1,178,648.24 × 472,128.64
  4. Step 4: Simplify right side
    854,126.44x = 556,473,590,589.59
  5. Step 5: Solve for x
    x = 556,473,590,589.59/854,126.44
  6. Step 6: Final answer
    x = 651,511.96

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1.5x scale

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.