Home / 808,522.80-1,213,782.60-509,002.80

Finding the Fourth Proportional to 808,522.80, 1,213,782.60 and 509,002.80

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Solution

The fourth proportional to 808,522.80, 1,213,782.60 and 509,002.80 is: 764,132.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,522.80 : 1,213,782.60 = 509,002.80 : x
  2. Step 2: Convert to fraction form
    808,522.80/1,213,782.60 = 509,002.80/x
  3. Step 3: Cross multiply
    808,522.80x = 1,213,782.60 × 509,002.80
  4. Step 4: Simplify right side
    808,522.80x = 617,818,741,991.28
  5. Step 5: Solve for x
    x = 617,818,741,991.28/808,522.80
  6. Step 6: Final answer
    x = 764,132.74

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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.