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Finding the Fourth Proportional to 851,986.60, 1,280,604.30 and 804,747.40

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Solution

The fourth proportional to 851,986.60, 1,280,604.30 and 804,747.40 is: 1,209,599.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,986.60 : 1,280,604.30 = 804,747.40 : x
  2. Step 2: Convert to fraction form
    851,986.60/1,280,604.30 = 804,747.40/x
  3. Step 3: Cross multiply
    851,986.60x = 1,280,604.30 × 804,747.40
  4. Step 4: Simplify right side
    851,986.60x = 1,030,562,980,853.82
  5. Step 5: Solve for x
    x = 1,030,562,980,853.82/851,986.60
  6. Step 6: Final answer
    x = 1,209,599.99

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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.