Home / 690,998.40-1,035,921.60-291,945.60

Finding the Fourth Proportional to 690,998.40, 1,035,921.60 and 291,945.60

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Solution

The fourth proportional to 690,998.40, 1,035,921.60 and 291,945.60 is: 437,675.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,998.40 : 1,035,921.60 = 291,945.60 : x
  2. Step 2: Convert to fraction form
    690,998.40/1,035,921.60 = 291,945.60/x
  3. Step 3: Cross multiply
    690,998.40x = 1,035,921.60 × 291,945.60
  4. Step 4: Simplify right side
    690,998.40x = 302,432,753,064.96
  5. Step 5: Solve for x
    x = 302,432,753,064.96/690,998.40
  6. Step 6: Final answer
    x = 437,675.04

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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.