Home / 918,010.20-1,377,015.30-681,814.20

Finding the Fourth Proportional to 918,010.20, 1,377,015.30 and 681,814.20

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Solution

The fourth proportional to 918,010.20, 1,377,015.30 and 681,814.20 is: 1,022,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,010.20 : 1,377,015.30 = 681,814.20 : x
  2. Step 2: Convert to fraction form
    918,010.20/1,377,015.30 = 681,814.20/x
  3. Step 3: Cross multiply
    918,010.20x = 1,377,015.30 × 681,814.20
  4. Step 4: Simplify right side
    918,010.20x = 938,868,585,157.26
  5. Step 5: Solve for x
    x = 938,868,585,157.26/918,010.20
  6. Step 6: Final answer
    x = 1,022,721.30

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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.