Home / 790,677.06-1,091,136.90-428,104.86

Finding the Fourth Proportional to 790,677.06, 1,091,136.90 and 428,104.86

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Solution

The fourth proportional to 790,677.06, 1,091,136.90 and 428,104.86 is: 590,786.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,677.06 : 1,091,136.90 = 428,104.86 : x
  2. Step 2: Convert to fraction form
    790,677.06/1,091,136.90 = 428,104.86/x
  3. Step 3: Cross multiply
    790,677.06x = 1,091,136.90 × 428,104.86
  4. Step 4: Simplify right side
    790,677.06x = 467,121,009,815.33
  5. Step 5: Solve for x
    x = 467,121,009,815.33/790,677.06
  6. Step 6: Final answer
    x = 590,786.09

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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.