Home / 1,168,015.50-1,611,861.75-631,471.50

Finding the Fourth Proportional to 1,168,015.50, 1,611,861.75 and 631,471.50

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Solution

The fourth proportional to 1,168,015.50, 1,611,861.75 and 631,471.50 is: 871,430.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,015.50 : 1,611,861.75 = 631,471.50 : x
  2. Step 2: Convert to fraction form
    1,168,015.50/1,611,861.75 = 631,471.50/x
  3. Step 3: Cross multiply
    1,168,015.50x = 1,611,861.75 × 631,471.50
  4. Step 4: Simplify right side
    1,168,015.50x = 1,017,844,757,065.13
  5. Step 5: Solve for x
    x = 1,017,844,757,065.13/1,168,015.50
  6. Step 6: Final answer
    x = 871,430.86

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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.