Home / 971,515.44-1,340,233.74-631,859.76

Finding the Fourth Proportional to 971,515.44, 1,340,233.74 and 631,859.76

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Solution

The fourth proportional to 971,515.44, 1,340,233.74 and 631,859.76 is: 871,668.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,515.44 : 1,340,233.74 = 631,859.76 : x
  2. Step 2: Convert to fraction form
    971,515.44/1,340,233.74 = 631,859.76/x
  3. Step 3: Cross multiply
    971,515.44x = 1,340,233.74 × 631,859.76
  4. Step 4: Simplify right side
    971,515.44x = 846,839,769,300.30
  5. Step 5: Solve for x
    x = 846,839,769,300.30/971,515.44
  6. Step 6: Final answer
    x = 871,668.87

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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.