Home / 1,167,969-1,611,801.06-631,428.84

Finding the Fourth Proportional to 1,167,969, 1,611,801.06 and 631,428.84

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Solution

The fourth proportional to 1,167,969, 1,611,801.06 and 631,428.84 is: 871,373.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,969 : 1,611,801.06 = 631,428.84 : x
  2. Step 2: Convert to fraction form
    1,167,969/1,611,801.06 = 631,428.84/x
  3. Step 3: Cross multiply
    1,167,969x = 1,611,801.06 × 631,428.84
  4. Step 4: Simplify right side
    1,167,969x = 1,017,737,673,626.57
  5. Step 5: Solve for x
    x = 1,017,737,673,626.57/1,167,969
  6. Step 6: Final answer
    x = 871,373.88

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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.