Home / 911,003.20-1,366,914.40-412,110.40

Finding the Fourth Proportional to 911,003.20, 1,366,914.40 and 412,110.40

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Solution

The fourth proportional to 911,003.20, 1,366,914.40 and 412,110.40 is: 618,350.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,003.20 : 1,366,914.40 = 412,110.40 : x
  2. Step 2: Convert to fraction form
    911,003.20/1,366,914.40 = 412,110.40/x
  3. Step 3: Cross multiply
    911,003.20x = 1,366,914.40 × 412,110.40
  4. Step 4: Simplify right side
    911,003.20x = 563,319,640,149.76
  5. Step 5: Solve for x
    x = 563,319,640,149.76/911,003.20
  6. Step 6: Final answer
    x = 618,350.89

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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.