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Finding the Fourth Proportional to 530,270.55, 731,772.36 and 300,872.88

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Solution

The fourth proportional to 530,270.55, 731,772.36 and 300,872.88 is: 415,204.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,270.55 : 731,772.36 = 300,872.88 : x
  2. Step 2: Convert to fraction form
    530,270.55/731,772.36 = 300,872.88/x
  3. Step 3: Cross multiply
    530,270.55x = 731,772.36 × 300,872.88
  4. Step 4: Simplify right side
    530,270.55x = 220,170,457,457.60
  5. Step 5: Solve for x
    x = 220,170,457,457.60/530,270.55
  6. Step 6: Final answer
    x = 415,204.01

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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.