Home / 631,769.31-871,561.89-376,973.28

Finding the Fourth Proportional to 631,769.31, 871,561.89 and 376,973.28

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Solution

The fourth proportional to 631,769.31, 871,561.89 and 376,973.28 is: 520,056.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,769.31 : 871,561.89 = 376,973.28 : x
  2. Step 2: Convert to fraction form
    631,769.31/871,561.89 = 376,973.28/x
  3. Step 3: Cross multiply
    631,769.31x = 871,561.89 × 376,973.28
  4. Step 4: Simplify right side
    631,769.31x = 328,555,544,396.30
  5. Step 5: Solve for x
    x = 328,555,544,396.30/631,769.31
  6. Step 6: Final answer
    x = 520,056.20

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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.