Home / 677,009.87-1,009,462.15-658,409.43

Finding the Fourth Proportional to 677,009.87, 1,009,462.15 and 658,409.43

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Solution

The fourth proportional to 677,009.87, 1,009,462.15 and 658,409.43 is: 981,727.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,009.87 : 1,009,462.15 = 658,409.43 : x
  2. Step 2: Convert to fraction form
    677,009.87/1,009,462.15 = 658,409.43/x
  3. Step 3: Cross multiply
    677,009.87x = 1,009,462.15 × 658,409.43
  4. Step 4: Simplify right side
    677,009.87x = 664,639,398,788.08
  5. Step 5: Solve for x
    x = 664,639,398,788.08/677,009.87
  6. Step 6: Final answer
    x = 981,727.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.