Home / 790,942.68-1,091,499.95-428,366.33

Finding the Fourth Proportional to 790,942.68, 1,091,499.95 and 428,366.33

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Solution

The fourth proportional to 790,942.68, 1,091,499.95 and 428,366.33 is: 591,145.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,942.68 : 1,091,499.95 = 428,366.33 : x
  2. Step 2: Convert to fraction form
    790,942.68/1,091,499.95 = 428,366.33/x
  3. Step 3: Cross multiply
    790,942.68x = 1,091,499.95 × 428,366.33
  4. Step 4: Simplify right side
    790,942.68x = 467,561,820,177.35
  5. Step 5: Solve for x
    x = 467,561,820,177.35/790,942.68
  6. Step 6: Final answer
    x = 591,145.01

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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.