Home / 1,128,811.20-1,692,775.62-408,982.02

Finding the Fourth Proportional to 1,128,811.20, 1,692,775.62 and 408,982.02

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Solution

The fourth proportional to 1,128,811.20, 1,692,775.62 and 408,982.02 is: 613,313.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,811.20 : 1,692,775.62 = 408,982.02 : x
  2. Step 2: Convert to fraction form
    1,128,811.20/1,692,775.62 = 408,982.02/x
  3. Step 3: Cross multiply
    1,128,811.20x = 1,692,775.62 × 408,982.02
  4. Step 4: Simplify right side
    1,128,811.20x = 692,314,792,474.35
  5. Step 5: Solve for x
    x = 692,314,792,474.35/1,128,811.20
  6. Step 6: Final answer
    x = 613,313.19

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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.