Home / 572,118.29-789,560.12-317,469.47

Finding the Fourth Proportional to 572,118.29, 789,560.12 and 317,469.47

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Solution

The fourth proportional to 572,118.29, 789,560.12 and 317,469.47 is: 438,128.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,118.29 : 789,560.12 = 317,469.47 : x
  2. Step 2: Convert to fraction form
    572,118.29/789,560.12 = 317,469.47/x
  3. Step 3: Cross multiply
    572,118.29x = 789,560.12 × 317,469.47
  4. Step 4: Simplify right side
    572,118.29x = 250,661,234,203.04
  5. Step 5: Solve for x
    x = 250,661,234,203.04/572,118.29
  6. Step 6: Final answer
    x = 438,128.34

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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.