Home / 956,642-1,320,165.96-554,467.28

Finding the Fourth Proportional to 956,642, 1,320,165.96 and 554,467.28

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Solution

The fourth proportional to 956,642, 1,320,165.96 and 554,467.28 is: 765,164.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,642 : 1,320,165.96 = 554,467.28 : x
  2. Step 2: Convert to fraction form
    956,642/1,320,165.96 = 554,467.28/x
  3. Step 3: Cross multiply
    956,642x = 1,320,165.96 × 554,467.28
  4. Step 4: Simplify right side
    956,642x = 731,988,828,989.79
  5. Step 5: Solve for x
    x = 731,988,828,989.79/956,642
  6. Step 6: Final answer
    x = 765,164.85

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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.