Home / 790,851.32-1,091,375.88-428,275.77

Finding the Fourth Proportional to 790,851.32, 1,091,375.88 and 428,275.77

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Solution

The fourth proportional to 790,851.32, 1,091,375.88 and 428,275.77 is: 591,021.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,851.32 : 1,091,375.88 = 428,275.77 : x
  2. Step 2: Convert to fraction form
    790,851.32/1,091,375.88 = 428,275.77/x
  3. Step 3: Cross multiply
    790,851.32x = 1,091,375.88 × 428,275.77
  4. Step 4: Simplify right side
    790,851.32x = 467,409,841,202.49
  5. Step 5: Solve for x
    x = 467,409,841,202.49/790,851.32
  6. Step 6: Final answer
    x = 591,021.13

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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.