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Finding the Fourth Proportional to 550,439.40, 825,659.10 and 492,702.60

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Solution

The fourth proportional to 550,439.40, 825,659.10 and 492,702.60 is: 739,053.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,439.40 : 825,659.10 = 492,702.60 : x
  2. Step 2: Convert to fraction form
    550,439.40/825,659.10 = 492,702.60/x
  3. Step 3: Cross multiply
    550,439.40x = 825,659.10 × 492,702.60
  4. Step 4: Simplify right side
    550,439.40x = 406,804,385,283.66
  5. Step 5: Solve for x
    x = 406,804,385,283.66/550,439.40
  6. Step 6: Final answer
    x = 739,053.90

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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.