Home / 790,723.50-1,091,196.81-428,147.25

Finding the Fourth Proportional to 790,723.50, 1,091,196.81 and 428,147.25

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Solution

The fourth proportional to 790,723.50, 1,091,196.81 and 428,147.25 is: 590,842.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,723.50 : 1,091,196.81 = 428,147.25 : x
  2. Step 2: Convert to fraction form
    790,723.50/1,091,196.81 = 428,147.25/x
  3. Step 3: Cross multiply
    790,723.50x = 1,091,196.81 × 428,147.25
  4. Step 4: Simplify right side
    790,723.50x = 467,192,913,410.27
  5. Step 5: Solve for x
    x = 467,192,913,410.27/790,723.50
  6. Step 6: Final answer
    x = 590,842.33

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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.