Home / 1,621,120.80-2,433,063.60-723,943.20

Finding the Fourth Proportional to 1,621,120.80, 2,433,063.60 and 723,943.20

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Solution

The fourth proportional to 1,621,120.80, 2,433,063.60 and 723,943.20 is: 1,086,532.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,120.80 : 2,433,063.60 = 723,943.20 : x
  2. Step 2: Convert to fraction form
    1,621,120.80/2,433,063.60 = 723,943.20/x
  3. Step 3: Cross multiply
    1,621,120.80x = 2,433,063.60 × 723,943.20
  4. Step 4: Simplify right side
    1,621,120.80x = 1,761,399,848,387.52
  5. Step 5: Solve for x
    x = 1,761,399,848,387.52/1,621,120.80
  6. Step 6: Final answer
    x = 1,086,532.14

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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.