Home / 790,781.37-1,091,283.48-428,205.27

Finding the Fourth Proportional to 790,781.37, 1,091,283.48 and 428,205.27

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Solution

The fourth proportional to 790,781.37, 1,091,283.48 and 428,205.27 is: 590,926.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,781.37 : 1,091,283.48 = 428,205.27 : x
  2. Step 2: Convert to fraction form
    790,781.37/1,091,283.48 = 428,205.27/x
  3. Step 3: Cross multiply
    790,781.37x = 1,091,283.48 × 428,205.27
  4. Step 4: Simplify right side
    790,781.37x = 467,293,337,199.94
  5. Step 5: Solve for x
    x = 467,293,337,199.94/790,781.37
  6. Step 6: Final answer
    x = 590,926.08

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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.