Home / 829,078.80-1,244,539.80-513,891.60

Finding the Fourth Proportional to 829,078.80, 1,244,539.80 and 513,891.60

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Solution

The fourth proportional to 829,078.80, 1,244,539.80 and 513,891.60 is: 771,408.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,078.80 : 1,244,539.80 = 513,891.60 : x
  2. Step 2: Convert to fraction form
    829,078.80/1,244,539.80 = 513,891.60/x
  3. Step 3: Cross multiply
    829,078.80x = 1,244,539.80 × 513,891.60
  4. Step 4: Simplify right side
    829,078.80x = 639,558,549,085.68
  5. Step 5: Solve for x
    x = 639,558,549,085.68/829,078.80
  6. Step 6: Final answer
    x = 771,408.64

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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.