Home / 455,948.12-684,040.35-242,540.28

Finding the Fourth Proportional to 455,948.12, 684,040.35 and 242,540.28

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Solution

The fourth proportional to 455,948.12, 684,040.35 and 242,540.28 is: 363,873.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,948.12 : 684,040.35 = 242,540.28 : x
  2. Step 2: Convert to fraction form
    455,948.12/684,040.35 = 242,540.28/x
  3. Step 3: Cross multiply
    455,948.12x = 684,040.35 × 242,540.28
  4. Step 4: Simplify right side
    455,948.12x = 165,907,338,020.30
  5. Step 5: Solve for x
    x = 165,907,338,020.30/455,948.12
  6. Step 6: Final answer
    x = 363,873.28

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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.