Home / 530,270.28-731,821.68-300,902.40

Finding the Fourth Proportional to 530,270.28, 731,821.68 and 300,902.40

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Solution

The fourth proportional to 530,270.28, 731,821.68 and 300,902.40 is: 415,272.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,270.28 : 731,821.68 = 300,902.40 : x
  2. Step 2: Convert to fraction form
    530,270.28/731,821.68 = 300,902.40/x
  3. Step 3: Cross multiply
    530,270.28x = 731,821.68 × 300,902.40
  4. Step 4: Simplify right side
    530,270.28x = 220,206,899,884.03
  5. Step 5: Solve for x
    x = 220,206,899,884.03/530,270.28
  6. Step 6: Final answer
    x = 415,272.94

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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.