Home / 1,242,180.35-1,863,270.96-389,318.17

Finding the Fourth Proportional to 1,242,180.35, 1,863,270.96 and 389,318.17

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Solution

The fourth proportional to 1,242,180.35, 1,863,270.96 and 389,318.17 is: 583,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,180.35 : 1,863,270.96 = 389,318.17 : x
  2. Step 2: Convert to fraction form
    1,242,180.35/1,863,270.96 = 389,318.17/x
  3. Step 3: Cross multiply
    1,242,180.35x = 1,863,270.96 × 389,318.17
  4. Step 4: Simplify right side
    1,242,180.35x = 725,405,246,914.04
  5. Step 5: Solve for x
    x = 725,405,246,914.04/1,242,180.35
  6. Step 6: Final answer
    x = 583,977.40

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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.