Home / 955,716.63-1,318,863.96-520,142.69

Finding the Fourth Proportional to 955,716.63, 1,318,863.96 and 520,142.69

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Solution

The fourth proportional to 955,716.63, 1,318,863.96 and 520,142.69 is: 717,783.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,716.63 : 1,318,863.96 = 520,142.69 : x
  2. Step 2: Convert to fraction form
    955,716.63/1,318,863.96 = 520,142.69/x
  3. Step 3: Cross multiply
    955,716.63x = 1,318,863.96 × 520,142.69
  4. Step 4: Simplify right side
    955,716.63x = 685,997,441,304.13
  5. Step 5: Solve for x
    x = 685,997,441,304.13/955,716.63
  6. Step 6: Final answer
    x = 717,783.30

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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.