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Finding the Fourth Proportional to 804,940.70, 1,207,411.05 and 793,130.90

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Solution

The fourth proportional to 804,940.70, 1,207,411.05 and 793,130.90 is: 1,189,696.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,940.70 : 1,207,411.05 = 793,130.90 : x
  2. Step 2: Convert to fraction form
    804,940.70/1,207,411.05 = 793,130.90/x
  3. Step 3: Cross multiply
    804,940.70x = 1,207,411.05 × 793,130.90
  4. Step 4: Simplify right side
    804,940.70x = 957,635,012,756.45
  5. Step 5: Solve for x
    x = 957,635,012,756.45/804,940.70
  6. Step 6: Final answer
    x = 1,189,696.35

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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.