Home / 728,359.74-1,005,771.11-456,894.27

Finding the Fourth Proportional to 728,359.74, 1,005,771.11 and 456,894.27

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Solution

The fourth proportional to 728,359.74, 1,005,771.11 and 456,894.27 is: 630,912.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,359.74 : 1,005,771.11 = 456,894.27 : x
  2. Step 2: Convert to fraction form
    728,359.74/1,005,771.11 = 456,894.27/x
  3. Step 3: Cross multiply
    728,359.74x = 1,005,771.11 × 456,894.27
  4. Step 4: Simplify right side
    728,359.74x = 459,531,057,090.54
  5. Step 5: Solve for x
    x = 459,531,057,090.54/728,359.74
  6. Step 6: Final answer
    x = 630,912.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.