Home / 769,829.12-1,062,398.40-430,297.28

Finding the Fourth Proportional to 769,829.12, 1,062,398.40 and 430,297.28

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Solution

The fourth proportional to 769,829.12, 1,062,398.40 and 430,297.28 is: 593,829.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,829.12 : 1,062,398.40 = 430,297.28 : x
  2. Step 2: Convert to fraction form
    769,829.12/1,062,398.40 = 430,297.28/x
  3. Step 3: Cross multiply
    769,829.12x = 1,062,398.40 × 430,297.28
  4. Step 4: Simplify right side
    769,829.12x = 457,147,141,796.35
  5. Step 5: Solve for x
    x = 457,147,141,796.35/769,829.12
  6. Step 6: Final answer
    x = 593,829.37

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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.