Home / 753,771.42-1,040,211.05-409,607.28

Finding the Fourth Proportional to 753,771.42, 1,040,211.05 and 409,607.28

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Solution

The fourth proportional to 753,771.42, 1,040,211.05 and 409,607.28 is: 565,261.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,771.42 : 1,040,211.05 = 409,607.28 : x
  2. Step 2: Convert to fraction form
    753,771.42/1,040,211.05 = 409,607.28/x
  3. Step 3: Cross multiply
    753,771.42x = 1,040,211.05 × 409,607.28
  4. Step 4: Simplify right side
    753,771.42x = 426,078,016,768.41
  5. Step 5: Solve for x
    x = 426,078,016,768.41/753,771.42
  6. Step 6: Final answer
    x = 565,261.57

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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.