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Finding the Fourth Proportional to 803,878.54, 1,109,362.98 and 441,249.64

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Solution

The fourth proportional to 803,878.54, 1,109,362.98 and 441,249.64 is: 608,930.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,878.54 : 1,109,362.98 = 441,249.64 : x
  2. Step 2: Convert to fraction form
    803,878.54/1,109,362.98 = 441,249.64/x
  3. Step 3: Cross multiply
    803,878.54x = 1,109,362.98 × 441,249.64
  4. Step 4: Simplify right side
    803,878.54x = 489,506,015,554.33
  5. Step 5: Solve for x
    x = 489,506,015,554.33/803,878.54
  6. Step 6: Final answer
    x = 608,930.32

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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.