Home / 690,444-1,035,678.96-191,820.96

Finding the Fourth Proportional to 690,444, 1,035,678.96 and 191,820.96

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Solution

The fourth proportional to 690,444, 1,035,678.96 and 191,820.96 is: 287,735.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,444 : 1,035,678.96 = 191,820.96 : x
  2. Step 2: Convert to fraction form
    690,444/1,035,678.96 = 191,820.96/x
  3. Step 3: Cross multiply
    690,444x = 1,035,678.96 × 191,820.96
  4. Step 4: Simplify right side
    690,444x = 198,664,932,359.00
  5. Step 5: Solve for x
    x = 198,664,932,359.00/690,444
  6. Step 6: Final answer
    x = 287,735.04

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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.