Home / 631,895.09-872,028.74-345,441.83

Finding the Fourth Proportional to 631,895.09, 872,028.74 and 345,441.83

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Solution

The fourth proportional to 631,895.09, 872,028.74 and 345,441.83 is: 476,717.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,895.09 : 872,028.74 = 345,441.83 : x
  2. Step 2: Convert to fraction form
    631,895.09/872,028.74 = 345,441.83/x
  3. Step 3: Cross multiply
    631,895.09x = 872,028.74 × 345,441.83
  4. Step 4: Simplify right side
    631,895.09x = 301,235,202,030.99
  5. Step 5: Solve for x
    x = 301,235,202,030.99/631,895.09
  6. Step 6: Final answer
    x = 476,717.11

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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.