Home / 1,129,140.46-1,558,173.46-639,099.46

Finding the Fourth Proportional to 1,129,140.46, 1,558,173.46 and 639,099.46

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Solution

The fourth proportional to 1,129,140.46, 1,558,173.46 and 639,099.46 is: 881,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,140.46 : 1,558,173.46 = 639,099.46 : x
  2. Step 2: Convert to fraction form
    1,129,140.46/1,558,173.46 = 639,099.46/x
  3. Step 3: Cross multiply
    1,129,140.46x = 1,558,173.46 × 639,099.46
  4. Step 4: Simplify right side
    1,129,140.46x = 995,827,816,872.33
  5. Step 5: Solve for x
    x = 995,827,816,872.33/1,129,140.46
  6. Step 6: Final answer
    x = 881,934.40

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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.