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Finding the Fourth Proportional to 530,326.72, 731,867.47 and 300,893.66

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Solution

The fourth proportional to 530,326.72, 731,867.47 and 300,893.66 is: 415,242.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,326.72 : 731,867.47 = 300,893.66 : x
  2. Step 2: Convert to fraction form
    530,326.72/731,867.47 = 300,893.66/x
  3. Step 3: Cross multiply
    530,326.72x = 731,867.47 × 300,893.66
  4. Step 4: Simplify right side
    530,326.72x = 220,214,282,760.68
  5. Step 5: Solve for x
    x = 220,214,282,760.68/530,326.72
  6. Step 6: Final answer
    x = 415,242.67

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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.