Home / 848,543.40-1,272,815.10-659,586.60

Finding the Fourth Proportional to 848,543.40, 1,272,815.10 and 659,586.60

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Solution

The fourth proportional to 848,543.40, 1,272,815.10 and 659,586.60 is: 989,379.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,543.40 : 1,272,815.10 = 659,586.60 : x
  2. Step 2: Convert to fraction form
    848,543.40/1,272,815.10 = 659,586.60/x
  3. Step 3: Cross multiply
    848,543.40x = 1,272,815.10 × 659,586.60
  4. Step 4: Simplify right side
    848,543.40x = 839,531,784,237.66
  5. Step 5: Solve for x
    x = 839,531,784,237.66/848,543.40
  6. Step 6: Final answer
    x = 989,379.90

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Double scale
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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.