Home / 919,661.45-1,379,725.52-288,580.73

Finding the Fourth Proportional to 919,661.45, 1,379,725.52 and 288,580.73

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Solution

The fourth proportional to 919,661.45, 1,379,725.52 and 288,580.73 is: 432,944.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,661.45 : 1,379,725.52 = 288,580.73 : x
  2. Step 2: Convert to fraction form
    919,661.45/1,379,725.52 = 288,580.73/x
  3. Step 3: Cross multiply
    919,661.45x = 1,379,725.52 × 288,580.73
  4. Step 4: Simplify right side
    919,661.45x = 398,162,189,419.70
  5. Step 5: Solve for x
    x = 398,162,189,419.70/919,661.45
  6. Step 6: Final answer
    x = 432,944.31

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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.