Home / 790,220.75-1,090,504.55-427,644.60

Finding the Fourth Proportional to 790,220.75, 1,090,504.55 and 427,644.60

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Solution

The fourth proportional to 790,220.75, 1,090,504.55 and 427,644.60 is: 590,149.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,220.75 : 1,090,504.55 = 427,644.60 : x
  2. Step 2: Convert to fraction form
    790,220.75/1,090,504.55 = 427,644.60/x
  3. Step 3: Cross multiply
    790,220.75x = 1,090,504.55 × 427,644.60
  4. Step 4: Simplify right side
    790,220.75x = 466,348,379,062.65
  5. Step 5: Solve for x
    x = 466,348,379,062.65/790,220.75
  6. Step 6: Final answer
    x = 590,149.50

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.