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Finding the Fourth Proportional to 654,548.80, 981,628.80 and 254,959.60

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Solution

The fourth proportional to 654,548.80, 981,628.80 and 254,959.60 is: 382,363.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,548.80 : 981,628.80 = 254,959.60 : x
  2. Step 2: Convert to fraction form
    654,548.80/981,628.80 = 254,959.60/x
  3. Step 3: Cross multiply
    654,548.80x = 981,628.80 × 254,959.60
  4. Step 4: Simplify right side
    654,548.80x = 250,275,686,196.48
  5. Step 5: Solve for x
    x = 250,275,686,196.48/654,548.80
  6. Step 6: Final answer
    x = 382,363.68

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1.5x scale

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.