Home / 855,423.99-1,180,404.97-511,191.38

Finding the Fourth Proportional to 855,423.99, 1,180,404.97 and 511,191.38

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Solution

The fourth proportional to 855,423.99, 1,180,404.97 and 511,191.38 is: 705,396.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,423.99 : 1,180,404.97 = 511,191.38 : x
  2. Step 2: Convert to fraction form
    855,423.99/1,180,404.97 = 511,191.38/x
  3. Step 3: Cross multiply
    855,423.99x = 1,180,404.97 × 511,191.38
  4. Step 4: Simplify right side
    855,423.99x = 603,412,847,246.19
  5. Step 5: Solve for x
    x = 603,412,847,246.19/855,423.99
  6. Step 6: Final answer
    x = 705,396.22

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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.