Home / 820,173.20-1,230,259.80-465,879.20

Finding the Fourth Proportional to 820,173.20, 1,230,259.80 and 465,879.20

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Solution

The fourth proportional to 820,173.20, 1,230,259.80 and 465,879.20 is: 698,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,173.20 : 1,230,259.80 = 465,879.20 : x
  2. Step 2: Convert to fraction form
    820,173.20/1,230,259.80 = 465,879.20/x
  3. Step 3: Cross multiply
    820,173.20x = 1,230,259.80 × 465,879.20
  4. Step 4: Simplify right side
    820,173.20x = 573,152,451,416.16
  5. Step 5: Solve for x
    x = 573,152,451,416.16/820,173.20
  6. Step 6: Final answer
    x = 698,818.80

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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.