Home / 758,540.15-1,137,976.40-285,225.51

Finding the Fourth Proportional to 758,540.15, 1,137,976.40 and 285,225.51

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Solution

The fourth proportional to 758,540.15, 1,137,976.40 and 285,225.51 is: 427,900.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,540.15 : 1,137,976.40 = 285,225.51 : x
  2. Step 2: Convert to fraction form
    758,540.15/1,137,976.40 = 285,225.51/x
  3. Step 3: Cross multiply
    758,540.15x = 1,137,976.40 × 285,225.51
  4. Step 4: Simplify right side
    758,540.15x = 324,579,899,057.96
  5. Step 5: Solve for x
    x = 324,579,899,057.96/758,540.15
  6. Step 6: Final answer
    x = 427,900.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.