Home / 1,212,004.80-1,818,007.20-538,084.80

Finding the Fourth Proportional to 1,212,004.80, 1,818,007.20 and 538,084.80

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Solution

The fourth proportional to 1,212,004.80, 1,818,007.20 and 538,084.80 is: 807,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,004.80 : 1,818,007.20 = 538,084.80 : x
  2. Step 2: Convert to fraction form
    1,212,004.80/1,818,007.20 = 538,084.80/x
  3. Step 3: Cross multiply
    1,212,004.80x = 1,818,007.20 × 538,084.80
  4. Step 4: Simplify right side
    1,212,004.80x = 978,242,040,610.56
  5. Step 5: Solve for x
    x = 978,242,040,610.56/1,212,004.80
  6. Step 6: Final answer
    x = 807,127.20

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1.5x scale

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.