Home / 1,300,998-1,795,290.24-720,181.68

Finding the Fourth Proportional to 1,300,998, 1,795,290.24 and 720,181.68

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Solution

The fourth proportional to 1,300,998, 1,795,290.24 and 720,181.68 is: 993,802.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,998 : 1,795,290.24 = 720,181.68 : x
  2. Step 2: Convert to fraction form
    1,300,998/1,795,290.24 = 720,181.68/x
  3. Step 3: Cross multiply
    1,300,998x = 1,795,290.24 × 720,181.68
  4. Step 4: Simplify right side
    1,300,998x = 1,292,935,141,130.80
  5. Step 5: Solve for x
    x = 1,292,935,141,130.80/1,300,998
  6. Step 6: Final answer
    x = 993,802.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.