Home / 1,212,999.70-1,819,499.55-740,607.70

Finding the Fourth Proportional to 1,212,999.70, 1,819,499.55 and 740,607.70

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Solution

The fourth proportional to 1,212,999.70, 1,819,499.55 and 740,607.70 is: 1,110,911.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,999.70 : 1,819,499.55 = 740,607.70 : x
  2. Step 2: Convert to fraction form
    1,212,999.70/1,819,499.55 = 740,607.70/x
  3. Step 3: Cross multiply
    1,212,999.70x = 1,819,499.55 × 740,607.70
  4. Step 4: Simplify right side
    1,212,999.70x = 1,347,535,376,876.53
  5. Step 5: Solve for x
    x = 1,347,535,376,876.53/1,212,999.70
  6. Step 6: Final answer
    x = 1,110,911.55

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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.