Home / 530,286.21-731,810.50-288,584.44

Finding the Fourth Proportional to 530,286.21, 731,810.50 and 288,584.44

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Solution

The fourth proportional to 530,286.21, 731,810.50 and 288,584.44 is: 398,254.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,286.21 : 731,810.50 = 288,584.44 : x
  2. Step 2: Convert to fraction form
    530,286.21/731,810.50 = 288,584.44/x
  3. Step 3: Cross multiply
    530,286.21x = 731,810.50 × 288,584.44
  4. Step 4: Simplify right side
    530,286.21x = 211,189,120,777.63
  5. Step 5: Solve for x
    x = 211,189,120,777.63/530,286.21
  6. Step 6: Final answer
    x = 398,254.97

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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.