Home / 1,167,145.40-1,611,989.24-784,507.88

Finding the Fourth Proportional to 1,167,145.40, 1,611,989.24 and 784,507.88

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Solution

The fourth proportional to 1,167,145.40, 1,611,989.24 and 784,507.88 is: 1,083,513.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,145.40 : 1,611,989.24 = 784,507.88 : x
  2. Step 2: Convert to fraction form
    1,167,145.40/1,611,989.24 = 784,507.88/x
  3. Step 3: Cross multiply
    1,167,145.40x = 1,611,989.24 × 784,507.88
  4. Step 4: Simplify right side
    1,167,145.40x = 1,264,618,261,255.21
  5. Step 5: Solve for x
    x = 1,264,618,261,255.21/1,167,145.40
  6. Step 6: Final answer
    x = 1,083,513.90

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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.