Home / 808,724.80-1,214,085.60-509,204.80

Finding the Fourth Proportional to 808,724.80, 1,214,085.60 and 509,204.80

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Solution

The fourth proportional to 808,724.80, 1,214,085.60 and 509,204.80 is: 764,435.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,724.80 : 1,214,085.60 = 509,204.80 : x
  2. Step 2: Convert to fraction form
    808,724.80/1,214,085.60 = 509,204.80/x
  3. Step 3: Cross multiply
    808,724.80x = 1,214,085.60 × 509,204.80
  4. Step 4: Simplify right side
    808,724.80x = 618,218,215,130.88
  5. Step 5: Solve for x
    x = 618,218,215,130.88/808,724.80
  6. Step 6: Final answer
    x = 764,435.83

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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.