Home / 766,609.63-1,057,906.75-422,477.36

Finding the Fourth Proportional to 766,609.63, 1,057,906.75 and 422,477.36

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Solution

The fourth proportional to 766,609.63, 1,057,906.75 and 422,477.36 is: 583,010.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,609.63 : 1,057,906.75 = 422,477.36 : x
  2. Step 2: Convert to fraction form
    766,609.63/1,057,906.75 = 422,477.36/x
  3. Step 3: Cross multiply
    766,609.63x = 1,057,906.75 × 422,477.36
  4. Step 4: Simplify right side
    766,609.63x = 446,941,653,443.33
  5. Step 5: Solve for x
    x = 446,941,653,443.33/766,609.63
  6. Step 6: Final answer
    x = 583,010.75

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Double scale
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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.