Home / 1,213,402.80-1,820,104.20-414,564.60

Finding the Fourth Proportional to 1,213,402.80, 1,820,104.20 and 414,564.60

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Solution

The fourth proportional to 1,213,402.80, 1,820,104.20 and 414,564.60 is: 621,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,402.80 : 1,820,104.20 = 414,564.60 : x
  2. Step 2: Convert to fraction form
    1,213,402.80/1,820,104.20 = 414,564.60/x
  3. Step 3: Cross multiply
    1,213,402.80x = 1,820,104.20 × 414,564.60
  4. Step 4: Simplify right side
    1,213,402.80x = 754,550,769,631.32
  5. Step 5: Solve for x
    x = 754,550,769,631.32/1,213,402.80
  6. Step 6: Final answer
    x = 621,846.90

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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.