Home / 766,653.20-1,057,982.52-427,133.36

Finding the Fourth Proportional to 766,653.20, 1,057,982.52 and 427,133.36

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Solution

The fourth proportional to 766,653.20, 1,057,982.52 and 427,133.36 is: 589,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,653.20 : 1,057,982.52 = 427,133.36 : x
  2. Step 2: Convert to fraction form
    766,653.20/1,057,982.52 = 427,133.36/x
  3. Step 3: Cross multiply
    766,653.20x = 1,057,982.52 × 427,133.36
  4. Step 4: Simplify right side
    766,653.20x = 451,899,628,588.87
  5. Step 5: Solve for x
    x = 451,899,628,588.87/766,653.20
  6. Step 6: Final answer
    x = 589,444.65

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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.