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Finding the Fourth Proportional to 484,945.60, 669,146.52 and 270,085

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Solution

The fourth proportional to 484,945.60, 669,146.52 and 270,085 is: 372,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,945.60 : 669,146.52 = 270,085 : x
  2. Step 2: Convert to fraction form
    484,945.60/669,146.52 = 270,085/x
  3. Step 3: Cross multiply
    484,945.60x = 669,146.52 × 270,085
  4. Step 4: Simplify right side
    484,945.60x = 180,726,437,854.20
  5. Step 5: Solve for x
    x = 180,726,437,854.20/484,945.60
  6. Step 6: Final answer
    x = 372,673.63

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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.