Home / 677,010.87-1,009,463.64-658,410.43

Finding the Fourth Proportional to 677,010.87, 1,009,463.64 and 658,410.43

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Solution

The fourth proportional to 677,010.87, 1,009,463.64 and 658,410.43 is: 981,729.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,010.87 : 1,009,463.64 = 658,410.43 : x
  2. Step 2: Convert to fraction form
    677,010.87/1,009,463.64 = 658,410.43/x
  3. Step 3: Cross multiply
    677,010.87x = 1,009,463.64 × 658,410.43
  4. Step 4: Simplify right side
    677,010.87x = 664,641,389,281.77
  5. Step 5: Solve for x
    x = 664,641,389,281.77/677,010.87
  6. Step 6: Final answer
    x = 981,729.27

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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.