Home / 325,964.10-488,946.15-315,077.70

Finding the Fourth Proportional to 325,964.10, 488,946.15 and 315,077.70

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Solution

The fourth proportional to 325,964.10, 488,946.15 and 315,077.70 is: 472,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,964.10 : 488,946.15 = 315,077.70 : x
  2. Step 2: Convert to fraction form
    325,964.10/488,946.15 = 315,077.70/x
  3. Step 3: Cross multiply
    325,964.10x = 488,946.15 × 315,077.70
  4. Step 4: Simplify right side
    325,964.10x = 154,056,028,365.86
  5. Step 5: Solve for x
    x = 154,056,028,365.86/325,964.10
  6. Step 6: Final answer
    x = 472,616.55

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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.