Home / 530,263.47-731,748.87-288,540.44

Finding the Fourth Proportional to 530,263.47, 731,748.87 and 288,540.44

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Solution

The fourth proportional to 530,263.47, 731,748.87 and 288,540.44 is: 398,177.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,263.47 : 731,748.87 = 288,540.44 : x
  2. Step 2: Convert to fraction form
    530,263.47/731,748.87 = 288,540.44/x
  3. Step 3: Cross multiply
    530,263.47x = 731,748.87 × 288,540.44
  4. Step 4: Simplify right side
    530,263.47x = 211,139,137,260.56
  5. Step 5: Solve for x
    x = 211,139,137,260.56/530,263.47
  6. Step 6: Final answer
    x = 398,177.79

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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.