Home / 1,100,567.20-1,650,850.80-781,702.60

Finding the Fourth Proportional to 1,100,567.20, 1,650,850.80 and 781,702.60

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Solution

The fourth proportional to 1,100,567.20, 1,650,850.80 and 781,702.60 is: 1,172,553.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,567.20 : 1,650,850.80 = 781,702.60 : x
  2. Step 2: Convert to fraction form
    1,100,567.20/1,650,850.80 = 781,702.60/x
  3. Step 3: Cross multiply
    1,100,567.20x = 1,650,850.80 × 781,702.60
  4. Step 4: Simplify right side
    1,100,567.20x = 1,290,474,362,572.08
  5. Step 5: Solve for x
    x = 1,290,474,362,572.08/1,100,567.20
  6. Step 6: Final answer
    x = 1,172,553.90

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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.