Home / 1,212,912.60-1,817,181.90-580,432.20

Finding the Fourth Proportional to 1,212,912.60, 1,817,181.90 and 580,432.20

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Solution

The fourth proportional to 1,212,912.60, 1,817,181.90 and 580,432.20 is: 869,601.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,912.60 : 1,817,181.90 = 580,432.20 : x
  2. Step 2: Convert to fraction form
    1,212,912.60/1,817,181.90 = 580,432.20/x
  3. Step 3: Cross multiply
    1,212,912.60x = 1,817,181.90 × 580,432.20
  4. Step 4: Simplify right side
    1,212,912.60x = 1,054,750,888,017.18
  5. Step 5: Solve for x
    x = 1,054,750,888,017.18/1,212,912.60
  6. Step 6: Final answer
    x = 869,601.72

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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.