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Finding the Fourth Proportional to 981,941.40, 1,470,287.70 and 981,941.40

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Solution

The fourth proportional to 981,941.40, 1,470,287.70 and 981,941.40 is: 1,470,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,941.40 : 1,470,287.70 = 981,941.40 : x
  2. Step 2: Convert to fraction form
    981,941.40/1,470,287.70 = 981,941.40/x
  3. Step 3: Cross multiply
    981,941.40x = 1,470,287.70 × 981,941.40
  4. Step 4: Simplify right side
    981,941.40x = 1,443,736,362,540.78
  5. Step 5: Solve for x
    x = 1,443,736,362,540.78/981,941.40
  6. Step 6: Final answer
    x = 1,470,287.70

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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.