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Finding the Fourth Proportional to 536,545.40, 803,651.70 and 325,815.80

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Solution

The fourth proportional to 536,545.40, 803,651.70 and 325,815.80 is: 488,015.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,545.40 : 803,651.70 = 325,815.80 : x
  2. Step 2: Convert to fraction form
    536,545.40/803,651.70 = 325,815.80/x
  3. Step 3: Cross multiply
    536,545.40x = 803,651.70 × 325,815.80
  4. Step 4: Simplify right side
    536,545.40x = 261,842,421,556.86
  5. Step 5: Solve for x
    x = 261,842,421,556.86/536,545.40
  6. Step 6: Final answer
    x = 488,015.41

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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.