Home / 581,940.62-802,814.32-420,540.02

Finding the Fourth Proportional to 581,940.62, 802,814.32 and 420,540.02

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Solution

The fourth proportional to 581,940.62, 802,814.32 and 420,540.02 is: 580,154.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,940.62 : 802,814.32 = 420,540.02 : x
  2. Step 2: Convert to fraction form
    581,940.62/802,814.32 = 420,540.02/x
  3. Step 3: Cross multiply
    581,940.62x = 802,814.32 × 420,540.02
  4. Step 4: Simplify right side
    581,940.62x = 337,615,550,189.09
  5. Step 5: Solve for x
    x = 337,615,550,189.09/581,940.62
  6. Step 6: Final answer
    x = 580,154.64

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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.