Home / 854,855.66-1,179,585.27-487,380.21

Finding the Fourth Proportional to 854,855.66, 1,179,585.27 and 487,380.21

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Solution

The fourth proportional to 854,855.66, 1,179,585.27 and 487,380.21 is: 672,518.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,855.66 : 1,179,585.27 = 487,380.21 : x
  2. Step 2: Convert to fraction form
    854,855.66/1,179,585.27 = 487,380.21/x
  3. Step 3: Cross multiply
    854,855.66x = 1,179,585.27 × 487,380.21
  4. Step 4: Simplify right side
    854,855.66x = 574,906,516,605.51
  5. Step 5: Solve for x
    x = 574,906,516,605.51/854,855.66
  6. Step 6: Final answer
    x = 672,518.82

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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.