Home / 899,336.69-1,241,087.92-491,438.57

Finding the Fourth Proportional to 899,336.69, 1,241,087.92 and 491,438.57

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Solution

The fourth proportional to 899,336.69, 1,241,087.92 and 491,438.57 is: 678,187.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,336.69 : 1,241,087.92 = 491,438.57 : x
  2. Step 2: Convert to fraction form
    899,336.69/1,241,087.92 = 491,438.57/x
  3. Step 3: Cross multiply
    899,336.69x = 1,241,087.92 × 491,438.57
  4. Step 4: Simplify right side
    899,336.69x = 609,918,474,523.20
  5. Step 5: Solve for x
    x = 609,918,474,523.20/899,336.69
  6. Step 6: Final answer
    x = 678,187.03

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1.5x scale

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.