Home / 765,640.84-1,056,584.36-426,189.28

Finding the Fourth Proportional to 765,640.84, 1,056,584.36 and 426,189.28

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Solution

The fourth proportional to 765,640.84, 1,056,584.36 and 426,189.28 is: 588,141.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,640.84 : 1,056,584.36 = 426,189.28 : x
  2. Step 2: Convert to fraction form
    765,640.84/1,056,584.36 = 426,189.28/x
  3. Step 3: Cross multiply
    765,640.84x = 1,056,584.36 × 426,189.28
  4. Step 4: Simplify right side
    765,640.84x = 450,304,927,647.66
  5. Step 5: Solve for x
    x = 450,304,927,647.66/765,640.84
  6. Step 6: Final answer
    x = 588,141.21

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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.