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Finding the Fourth Proportional to 660,246.40, 989,203.20 and 541,273.60

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Solution

The fourth proportional to 660,246.40, 989,203.20 and 541,273.60 is: 810,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,246.40 : 989,203.20 = 541,273.60 : x
  2. Step 2: Convert to fraction form
    660,246.40/989,203.20 = 541,273.60/x
  3. Step 3: Cross multiply
    660,246.40x = 989,203.20 × 541,273.60
  4. Step 4: Simplify right side
    660,246.40x = 535,429,577,195.52
  5. Step 5: Solve for x
    x = 535,429,577,195.52/660,246.40
  6. Step 6: Final answer
    x = 810,954.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.