Home / 530,170.80-731,635.44-288,453.06

Finding the Fourth Proportional to 530,170.80, 731,635.44 and 288,453.06

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Solution

The fourth proportional to 530,170.80, 731,635.44 and 288,453.06 is: 398,065.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,170.80 : 731,635.44 = 288,453.06 : x
  2. Step 2: Convert to fraction form
    530,170.80/731,635.44 = 288,453.06/x
  3. Step 3: Cross multiply
    530,170.80x = 731,635.44 × 288,453.06
  4. Step 4: Simplify right side
    530,170.80x = 211,042,481,472.45
  5. Step 5: Solve for x
    x = 211,042,481,472.45/530,170.80
  6. Step 6: Final answer
    x = 398,065.08

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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.