Home / 1,212,902.60-1,817,166.90-580,422.20

Finding the Fourth Proportional to 1,212,902.60, 1,817,166.90 and 580,422.20

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Solution

The fourth proportional to 1,212,902.60, 1,817,166.90 and 580,422.20 is: 869,586.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,902.60 : 1,817,166.90 = 580,422.20 : x
  2. Step 2: Convert to fraction form
    1,212,902.60/1,817,166.90 = 580,422.20/x
  3. Step 3: Cross multiply
    1,212,902.60x = 1,817,166.90 × 580,422.20
  4. Step 4: Simplify right side
    1,212,902.60x = 1,054,724,009,865.18
  5. Step 5: Solve for x
    x = 1,054,724,009,865.18/1,212,902.60
  6. Step 6: Final answer
    x = 869,586.73

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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.