Home / 864,140.67-1,295,796.89-408,352.55

Finding the Fourth Proportional to 864,140.67, 1,295,796.89 and 408,352.55

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Solution

The fourth proportional to 864,140.67, 1,295,796.89 and 408,352.55 is: 612,333.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,140.67 : 1,295,796.89 = 408,352.55 : x
  2. Step 2: Convert to fraction form
    864,140.67/1,295,796.89 = 408,352.55/x
  3. Step 3: Cross multiply
    864,140.67x = 1,295,796.89 × 408,352.55
  4. Step 4: Simplify right side
    864,140.67x = 529,141,958,855.47
  5. Step 5: Solve for x
    x = 529,141,958,855.47/864,140.67
  6. Step 6: Final answer
    x = 612,333.13

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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.