Home / 816,800.88-1,224,401.45-457,147.38

Finding the Fourth Proportional to 816,800.88, 1,224,401.45 and 457,147.38

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Solution

The fourth proportional to 816,800.88, 1,224,401.45 and 457,147.38 is: 685,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,800.88 : 1,224,401.45 = 457,147.38 : x
  2. Step 2: Convert to fraction form
    816,800.88/1,224,401.45 = 457,147.38/x
  3. Step 3: Cross multiply
    816,800.88x = 1,224,401.45 × 457,147.38
  4. Step 4: Simplify right side
    816,800.88x = 559,731,912,649.96
  5. Step 5: Solve for x
    x = 559,731,912,649.96/816,800.88
  6. Step 6: Final answer
    x = 685,273.40

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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.