Home / 790,650.60-1,091,098.26-428,074.60

Finding the Fourth Proportional to 790,650.60, 1,091,098.26 and 428,074.60

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Solution

The fourth proportional to 790,650.60, 1,091,098.26 and 428,074.60 is: 590,743.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,650.60 : 1,091,098.26 = 428,074.60 : x
  2. Step 2: Convert to fraction form
    790,650.60/1,091,098.26 = 428,074.60/x
  3. Step 3: Cross multiply
    790,650.60x = 1,091,098.26 × 428,074.60
  4. Step 4: Simplify right side
    790,650.60x = 467,071,451,210.20
  5. Step 5: Solve for x
    x = 467,071,451,210.20/790,650.60
  6. Step 6: Final answer
    x = 590,743.18

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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.