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Finding the Fourth Proportional to 1,308,826.10, 1,963,239.15 and 804,941.30

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Solution

The fourth proportional to 1,308,826.10, 1,963,239.15 and 804,941.30 is: 1,207,411.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,826.10 : 1,963,239.15 = 804,941.30 : x
  2. Step 2: Convert to fraction form
    1,308,826.10/1,963,239.15 = 804,941.30/x
  3. Step 3: Cross multiply
    1,308,826.10x = 1,963,239.15 × 804,941.30
  4. Step 4: Simplify right side
    1,308,826.10x = 1,580,292,273,611.90
  5. Step 5: Solve for x
    x = 1,580,292,273,611.90/1,308,826.10
  6. Step 6: Final answer
    x = 1,207,411.95

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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.