Home / 631,450.17-871,390.31-344,962.89

Finding the Fourth Proportional to 631,450.17, 871,390.31 and 344,962.89

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Solution

The fourth proportional to 631,450.17, 871,390.31 and 344,962.89 is: 476,042.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,450.17 : 871,390.31 = 344,962.89 : x
  2. Step 2: Convert to fraction form
    631,450.17/871,390.31 = 344,962.89/x
  3. Step 3: Cross multiply
    631,450.17x = 871,390.31 × 344,962.89
  4. Step 4: Simplify right side
    631,450.17x = 300,597,317,930.78
  5. Step 5: Solve for x
    x = 300,597,317,930.78/631,450.17
  6. Step 6: Final answer
    x = 476,042.82

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1.5x scale

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.