Home / 1,220,881.89-1,831,585.31-411,346.75

Finding the Fourth Proportional to 1,220,881.89, 1,831,585.31 and 411,346.75

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Solution

The fourth proportional to 1,220,881.89, 1,831,585.31 and 411,346.75 is: 617,108.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,881.89 : 1,831,585.31 = 411,346.75 : x
  2. Step 2: Convert to fraction form
    1,220,881.89/1,831,585.31 = 411,346.75/x
  3. Step 3: Cross multiply
    1,220,881.89x = 1,831,585.31 × 411,346.75
  4. Step 4: Simplify right side
    1,220,881.89x = 753,416,663,330.78
  5. Step 5: Solve for x
    x = 753,416,663,330.78/1,220,881.89
  6. Step 6: Final answer
    x = 617,108.56

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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.