Home / 907,978.95-1,361,964.78-276,890.94

Finding the Fourth Proportional to 907,978.95, 1,361,964.78 and 276,890.94

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Solution

The fourth proportional to 907,978.95, 1,361,964.78 and 276,890.94 is: 415,335.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,978.95 : 1,361,964.78 = 276,890.94 : x
  2. Step 2: Convert to fraction form
    907,978.95/1,361,964.78 = 276,890.94/x
  3. Step 3: Cross multiply
    907,978.95x = 1,361,964.78 × 276,890.94
  4. Step 4: Simplify right side
    907,978.95x = 377,115,708,181.09
  5. Step 5: Solve for x
    x = 377,115,708,181.09/907,978.95
  6. Step 6: Final answer
    x = 415,335.30

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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.