Home / 530,170.20-731,580.12-300,681

Finding the Fourth Proportional to 530,170.20, 731,580.12 and 300,681

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Solution

The fourth proportional to 530,170.20, 731,580.12 and 300,681 is: 414,908.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,170.20 : 731,580.12 = 300,681 : x
  2. Step 2: Convert to fraction form
    530,170.20/731,580.12 = 300,681/x
  3. Step 3: Cross multiply
    530,170.20x = 731,580.12 × 300,681
  4. Step 4: Simplify right side
    530,170.20x = 219,972,242,061.72
  5. Step 5: Solve for x
    x = 219,972,242,061.72/530,170.20
  6. Step 6: Final answer
    x = 414,908.73

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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.