Home / 595,619.72-821,539.53-391,605.42

Finding the Fourth Proportional to 595,619.72, 821,539.53 and 391,605.42

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Solution

The fourth proportional to 595,619.72, 821,539.53 and 391,605.42 is: 540,142.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,619.72 : 821,539.53 = 391,605.42 : x
  2. Step 2: Convert to fraction form
    595,619.72/821,539.53 = 391,605.42/x
  3. Step 3: Cross multiply
    595,619.72x = 821,539.53 × 391,605.42
  4. Step 4: Simplify right side
    595,619.72x = 321,719,332,692.25
  5. Step 5: Solve for x
    x = 321,719,332,692.25/595,619.72
  6. Step 6: Final answer
    x = 540,142.18

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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.