Home / 753,765.45-1,040,200.55-409,604.23

Finding the Fourth Proportional to 753,765.45, 1,040,200.55 and 409,604.23

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Solution

The fourth proportional to 753,765.45, 1,040,200.55 and 409,604.23 is: 565,256.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,765.45 : 1,040,200.55 = 409,604.23 : x
  2. Step 2: Convert to fraction form
    753,765.45/1,040,200.55 = 409,604.23/x
  3. Step 3: Cross multiply
    753,765.45x = 1,040,200.55 × 409,604.23
  4. Step 4: Simplify right side
    753,765.45x = 426,070,545,328.33
  5. Step 5: Solve for x
    x = 426,070,545,328.33/753,765.45
  6. Step 6: Final answer
    x = 565,256.14

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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.