Home / 1,091,539.40-1,638,086.70-460,905.80

Finding the Fourth Proportional to 1,091,539.40, 1,638,086.70 and 460,905.80

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Solution

The fourth proportional to 1,091,539.40, 1,638,086.70 and 460,905.80 is: 691,687.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,539.40 : 1,638,086.70 = 460,905.80 : x
  2. Step 2: Convert to fraction form
    1,091,539.40/1,638,086.70 = 460,905.80/x
  3. Step 3: Cross multiply
    1,091,539.40x = 1,638,086.70 × 460,905.80
  4. Step 4: Simplify right side
    1,091,539.40x = 755,003,660,932.86
  5. Step 5: Solve for x
    x = 755,003,660,932.86/1,091,539.40
  6. Step 6: Final answer
    x = 691,687.04

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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.