Home / 631,245.30-871,111.98-344,765.40

Finding the Fourth Proportional to 631,245.30, 871,111.98 and 344,765.40

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Solution

The fourth proportional to 631,245.30, 871,111.98 and 344,765.40 is: 475,772.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,245.30 : 871,111.98 = 344,765.40 : x
  2. Step 2: Convert to fraction form
    631,245.30/871,111.98 = 344,765.40/x
  3. Step 3: Cross multiply
    631,245.30x = 871,111.98 × 344,765.40
  4. Step 4: Simplify right side
    631,245.30x = 300,329,270,229.49
  5. Step 5: Solve for x
    x = 300,329,270,229.49/631,245.30
  6. Step 6: Final answer
    x = 475,772.68

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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.