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Finding the Fourth Proportional to 851,951.10, 1,280,551.05 and 804,711.90

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Solution

The fourth proportional to 851,951.10, 1,280,551.05 and 804,711.90 is: 1,209,546.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,951.10 : 1,280,551.05 = 804,711.90 : x
  2. Step 2: Convert to fraction form
    851,951.10/1,280,551.05 = 804,711.90/x
  3. Step 3: Cross multiply
    851,951.10x = 1,280,551.05 × 804,711.90
  4. Step 4: Simplify right side
    851,951.10x = 1,030,474,668,492.50
  5. Step 5: Solve for x
    x = 1,030,474,668,492.50/851,951.10
  6. Step 6: Final answer
    x = 1,209,546.73

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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.