Home / 865,723.20-1,298,584.80-546,858.60

Finding the Fourth Proportional to 865,723.20, 1,298,584.80 and 546,858.60

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Solution

The fourth proportional to 865,723.20, 1,298,584.80 and 546,858.60 is: 820,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,723.20 : 1,298,584.80 = 546,858.60 : x
  2. Step 2: Convert to fraction form
    865,723.20/1,298,584.80 = 546,858.60/x
  3. Step 3: Cross multiply
    865,723.20x = 1,298,584.80 × 546,858.60
  4. Step 4: Simplify right side
    865,723.20x = 710,142,265,709.28
  5. Step 5: Solve for x
    x = 710,142,265,709.28/865,723.20
  6. Step 6: Final answer
    x = 820,287.90

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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.