Home / 981,274.89-1,354,197.74-551,553.69

Finding the Fourth Proportional to 981,274.89, 1,354,197.74 and 551,553.69

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Solution

The fourth proportional to 981,274.89, 1,354,197.74 and 551,553.69 is: 761,165.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,274.89 : 1,354,197.74 = 551,553.69 : x
  2. Step 2: Convert to fraction form
    981,274.89/1,354,197.74 = 551,553.69/x
  3. Step 3: Cross multiply
    981,274.89x = 1,354,197.74 × 551,553.69
  4. Step 4: Simplify right side
    981,274.89x = 746,912,757,728.89
  5. Step 5: Solve for x
    x = 746,912,757,728.89/981,274.89
  6. Step 6: Final answer
    x = 761,165.67

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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.