Home / 4,272,980.59-6,407,415.06-1,431,105.31

Finding the Fourth Proportional to 4,272,980.59, 6,407,415.06 and 1,431,105.31

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Solution

The fourth proportional to 4,272,980.59, 6,407,415.06 and 1,431,105.31 is: 2,145,969.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272,980.59 : 6,407,415.06 = 1,431,105.31 : x
  2. Step 2: Convert to fraction form
    4,272,980.59/6,407,415.06 = 1,431,105.31/x
  3. Step 3: Cross multiply
    4,272,980.59x = 6,407,415.06 × 1,431,105.31
  4. Step 4: Simplify right side
    4,272,980.59x = 9,169,685,715,739.97
  5. Step 5: Solve for x
    x = 9,169,685,715,739.97/4,272,980.59
  6. Step 6: Final answer
    x = 2,145,969.43

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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.