Home / 727,280.20-1,090,171.77-322,662.96

Finding the Fourth Proportional to 727,280.20, 1,090,171.77 and 322,662.96

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Solution

The fourth proportional to 727,280.20, 1,090,171.77 and 322,662.96 is: 483,662.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,280.20 : 1,090,171.77 = 322,662.96 : x
  2. Step 2: Convert to fraction form
    727,280.20/1,090,171.77 = 322,662.96/x
  3. Step 3: Cross multiply
    727,280.20x = 1,090,171.77 × 322,662.96
  4. Step 4: Simplify right side
    727,280.20x = 351,758,050,216.64
  5. Step 5: Solve for x
    x = 351,758,050,216.64/727,280.20
  6. Step 6: Final answer
    x = 483,662.35

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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.