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Finding the Fourth Proportional to 654,292.20, 981,146.70 and 254,800.20

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Solution

The fourth proportional to 654,292.20, 981,146.70 and 254,800.20 is: 382,086.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,292.20 : 981,146.70 = 254,800.20 : x
  2. Step 2: Convert to fraction form
    654,292.20/981,146.70 = 254,800.20/x
  3. Step 3: Cross multiply
    654,292.20x = 981,146.70 × 254,800.20
  4. Step 4: Simplify right side
    654,292.20x = 249,996,375,389.34
  5. Step 5: Solve for x
    x = 249,996,375,389.34/654,292.20
  6. Step 6: Final answer
    x = 382,086.74

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Double scale
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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.