Home / 1,167,150.40-1,611,996.16-784,512.88

Finding the Fourth Proportional to 1,167,150.40, 1,611,996.16 and 784,512.88

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Solution

The fourth proportional to 1,167,150.40, 1,611,996.16 and 784,512.88 is: 1,083,520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,150.40 : 1,611,996.16 = 784,512.88 : x
  2. Step 2: Convert to fraction form
    1,167,150.40/1,611,996.16 = 784,512.88/x
  3. Step 3: Cross multiply
    1,167,150.40x = 1,611,996.16 × 784,512.88
  4. Step 4: Simplify right side
    1,167,150.40x = 1,264,631,750,030.54
  5. Step 5: Solve for x
    x = 1,264,631,750,030.54/1,167,150.40
  6. Step 6: Final answer
    x = 1,083,520.81

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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.