Home / 854,800.89-1,179,689.27-487,286.79

Finding the Fourth Proportional to 854,800.89, 1,179,689.27 and 487,286.79

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Solution

The fourth proportional to 854,800.89, 1,179,689.27 and 487,286.79 is: 672,492.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,800.89 : 1,179,689.27 = 487,286.79 : x
  2. Step 2: Convert to fraction form
    854,800.89/1,179,689.27 = 487,286.79/x
  3. Step 3: Cross multiply
    854,800.89x = 1,179,689.27 × 487,286.79
  4. Step 4: Simplify right side
    854,800.89x = 574,846,995,139.31
  5. Step 5: Solve for x
    x = 574,846,995,139.31/854,800.89
  6. Step 6: Final answer
    x = 672,492.27

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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.