Home / 766,550.90-1,057,886.69-422,386.41

Finding the Fourth Proportional to 766,550.90, 1,057,886.69 and 422,386.41

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Solution

The fourth proportional to 766,550.90, 1,057,886.69 and 422,386.41 is: 582,918.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,550.90 : 1,057,886.69 = 422,386.41 : x
  2. Step 2: Convert to fraction form
    766,550.90/1,057,886.69 = 422,386.41/x
  3. Step 3: Cross multiply
    766,550.90x = 1,057,886.69 × 422,386.41
  4. Step 4: Simplify right side
    766,550.90x = 446,836,961,317.24
  5. Step 5: Solve for x
    x = 446,836,961,317.24/766,550.90
  6. Step 6: Final answer
    x = 582,918.84

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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.