Home / 1,213,220.40-1,819,657.80-414,538.80

Finding the Fourth Proportional to 1,213,220.40, 1,819,657.80 and 414,538.80

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Solution

The fourth proportional to 1,213,220.40, 1,819,657.80 and 414,538.80 is: 621,749.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,220.40 : 1,819,657.80 = 414,538.80 : x
  2. Step 2: Convert to fraction form
    1,213,220.40/1,819,657.80 = 414,538.80/x
  3. Step 3: Cross multiply
    1,213,220.40x = 1,819,657.80 × 414,538.80
  4. Step 4: Simplify right side
    1,213,220.40x = 754,318,760,822.64
  5. Step 5: Solve for x
    x = 754,318,760,822.64/1,213,220.40
  6. Step 6: Final answer
    x = 621,749.16

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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.