Home / 728,622.96-1,005,497.73-406,333.42

Finding the Fourth Proportional to 728,622.96, 1,005,497.73 and 406,333.42

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Solution

The fourth proportional to 728,622.96, 1,005,497.73 and 406,333.42 is: 560,739.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,622.96 : 1,005,497.73 = 406,333.42 : x
  2. Step 2: Convert to fraction form
    728,622.96/1,005,497.73 = 406,333.42/x
  3. Step 3: Cross multiply
    728,622.96x = 1,005,497.73 × 406,333.42
  4. Step 4: Simplify right side
    728,622.96x = 408,567,331,433.14
  5. Step 5: Solve for x
    x = 408,567,331,433.14/728,622.96
  6. Step 6: Final answer
    x = 560,739.03

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1.5x scale

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.