Home / 572,077.69-789,467.21-317,469.85

Finding the Fourth Proportional to 572,077.69, 789,467.21 and 317,469.85

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Solution

The fourth proportional to 572,077.69, 789,467.21 and 317,469.85 is: 438,108.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,077.69 : 789,467.21 = 317,469.85 : x
  2. Step 2: Convert to fraction form
    572,077.69/789,467.21 = 317,469.85/x
  3. Step 3: Cross multiply
    572,077.69x = 789,467.21 × 317,469.85
  4. Step 4: Simplify right side
    572,077.69x = 250,632,034,368.11
  5. Step 5: Solve for x
    x = 250,632,034,368.11/572,077.69
  6. Step 6: Final answer
    x = 438,108.39

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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.