Home / 1,245,436.55-1,861,331.15-909,185.30

Finding the Fourth Proportional to 1,245,436.55, 1,861,331.15 and 909,185.30

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Solution

The fourth proportional to 1,245,436.55, 1,861,331.15 and 909,185.30 is: 1,358,796.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,436.55 : 1,861,331.15 = 909,185.30 : x
  2. Step 2: Convert to fraction form
    1,245,436.55/1,861,331.15 = 909,185.30/x
  3. Step 3: Cross multiply
    1,245,436.55x = 1,861,331.15 × 909,185.30
  4. Step 4: Simplify right side
    1,245,436.55x = 1,692,294,914,844.23
  5. Step 5: Solve for x
    x = 1,692,294,914,844.23/1,245,436.55
  6. Step 6: Final answer
    x = 1,358,796.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.