Home / 584,890.80-877,336.20-485,163.60

Finding the Fourth Proportional to 584,890.80, 877,336.20 and 485,163.60

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Solution

The fourth proportional to 584,890.80, 877,336.20 and 485,163.60 is: 727,745.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,890.80 : 877,336.20 = 485,163.60 : x
  2. Step 2: Convert to fraction form
    584,890.80/877,336.20 = 485,163.60/x
  3. Step 3: Cross multiply
    584,890.80x = 877,336.20 × 485,163.60
  4. Step 4: Simplify right side
    584,890.80x = 425,651,589,202.32
  5. Step 5: Solve for x
    x = 425,651,589,202.32/584,890.80
  6. Step 6: Final answer
    x = 727,745.40

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Half scale
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Double scale
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Similar ratio
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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.