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Finding the Fourth Proportional to 536,495.40, 803,576.70 and 325,765.80

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Solution

The fourth proportional to 536,495.40, 803,576.70 and 325,765.80 is: 487,940.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,495.40 : 803,576.70 = 325,765.80 : x
  2. Step 2: Convert to fraction form
    536,495.40/803,576.70 = 325,765.80/x
  3. Step 3: Cross multiply
    536,495.40x = 803,576.70 × 325,765.80
  4. Step 4: Simplify right side
    536,495.40x = 261,777,806,536.86
  5. Step 5: Solve for x
    x = 261,777,806,536.86/536,495.40
  6. Step 6: Final answer
    x = 487,940.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.