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Finding the Fourth Proportional to 864,004.90, 1,296,007.35 and 804,955.90

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Solution

The fourth proportional to 864,004.90, 1,296,007.35 and 804,955.90 is: 1,207,433.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,004.90 : 1,296,007.35 = 804,955.90 : x
  2. Step 2: Convert to fraction form
    864,004.90/1,296,007.35 = 804,955.90/x
  3. Step 3: Cross multiply
    864,004.90x = 1,296,007.35 × 804,955.90
  4. Step 4: Simplify right side
    864,004.90x = 1,043,228,762,825.87
  5. Step 5: Solve for x
    x = 1,043,228,762,825.87/864,004.90
  6. Step 6: Final answer
    x = 1,207,433.85

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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.