Home / 790,651.07-1,091,097.03-428,074.88

Finding the Fourth Proportional to 790,651.07, 1,091,097.03 and 428,074.88

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Solution

The fourth proportional to 790,651.07, 1,091,097.03 and 428,074.88 is: 590,742.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,651.07 : 1,091,097.03 = 428,074.88 : x
  2. Step 2: Convert to fraction form
    790,651.07/1,091,097.03 = 428,074.88/x
  3. Step 3: Cross multiply
    790,651.07x = 1,091,097.03 × 428,074.88
  4. Step 4: Simplify right side
    790,651.07x = 467,071,226,335.40
  5. Step 5: Solve for x
    x = 467,071,226,335.40/790,651.07
  6. Step 6: Final answer
    x = 590,742.54

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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.