Home / 850,550.46-1,276,616.25-430,128.06

Finding the Fourth Proportional to 850,550.46, 1,276,616.25 and 430,128.06

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Solution

The fourth proportional to 850,550.46, 1,276,616.25 and 430,128.06 is: 645,591.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,550.46 : 1,276,616.25 = 430,128.06 : x
  2. Step 2: Convert to fraction form
    850,550.46/1,276,616.25 = 430,128.06/x
  3. Step 3: Cross multiply
    850,550.46x = 1,276,616.25 × 430,128.06
  4. Step 4: Simplify right side
    850,550.46x = 549,108,470,976.98
  5. Step 5: Solve for x
    x = 549,108,470,976.98/850,550.46
  6. Step 6: Final answer
    x = 645,591.88

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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.