Home / 530,011.91-731,546.35-300,703.42

Finding the Fourth Proportional to 530,011.91, 731,546.35 and 300,703.42

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Solution

The fourth proportional to 530,011.91, 731,546.35 and 300,703.42 is: 415,044.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,011.91 : 731,546.35 = 300,703.42 : x
  2. Step 2: Convert to fraction form
    530,011.91/731,546.35 = 300,703.42/x
  3. Step 3: Cross multiply
    530,011.91x = 731,546.35 × 300,703.42
  4. Step 4: Simplify right side
    530,011.91x = 219,978,487,830.00
  5. Step 5: Solve for x
    x = 219,978,487,830.00/530,011.91
  6. Step 6: Final answer
    x = 415,044.43

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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.