Home / 820,173.70-1,230,260.55-465,879.70

Finding the Fourth Proportional to 820,173.70, 1,230,260.55 and 465,879.70

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Solution

The fourth proportional to 820,173.70, 1,230,260.55 and 465,879.70 is: 698,819.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,173.70 : 1,230,260.55 = 465,879.70 : x
  2. Step 2: Convert to fraction form
    820,173.70/1,230,260.55 = 465,879.70/x
  3. Step 3: Cross multiply
    820,173.70x = 1,230,260.55 × 465,879.70
  4. Step 4: Simplify right side
    820,173.70x = 573,153,415,955.84
  5. Step 5: Solve for x
    x = 573,153,415,955.84/820,173.70
  6. Step 6: Final answer
    x = 698,819.55

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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.