Home / 396,320.69-543,559.76-380,045.16

Finding the Fourth Proportional to 396,320.69, 543,559.76 and 380,045.16

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Solution

The fourth proportional to 396,320.69, 543,559.76 and 380,045.16 is: 521,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,320.69 : 543,559.76 = 380,045.16 : x
  2. Step 2: Convert to fraction form
    396,320.69/543,559.76 = 380,045.16/x
  3. Step 3: Cross multiply
    396,320.69x = 543,559.76 × 380,045.16
  4. Step 4: Simplify right side
    396,320.69x = 206,577,254,058.54
  5. Step 5: Solve for x
    x = 206,577,254,058.54/396,320.69
  6. Step 6: Final answer
    x = 521,237.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.