Home / 824,128.38-1,235,805.05-318,927.27

Finding the Fourth Proportional to 824,128.38, 1,235,805.05 and 318,927.27

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Solution

The fourth proportional to 824,128.38, 1,235,805.05 and 318,927.27 is: 478,240.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,128.38 : 1,235,805.05 = 318,927.27 : x
  2. Step 2: Convert to fraction form
    824,128.38/1,235,805.05 = 318,927.27/x
  3. Step 3: Cross multiply
    824,128.38x = 1,235,805.05 × 318,927.27
  4. Step 4: Simplify right side
    824,128.38x = 394,131,936,280.30
  5. Step 5: Solve for x
    x = 394,131,936,280.30/824,128.38
  6. Step 6: Final answer
    x = 478,240.95

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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.