Home / 790,639.37-1,091,069.10-428,060.29

Finding the Fourth Proportional to 790,639.37, 1,091,069.10 and 428,060.29

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Solution

The fourth proportional to 790,639.37, 1,091,069.10 and 428,060.29 is: 590,716.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,639.37 : 1,091,069.10 = 428,060.29 : x
  2. Step 2: Convert to fraction form
    790,639.37/1,091,069.10 = 428,060.29/x
  3. Step 3: Cross multiply
    790,639.37x = 1,091,069.10 × 428,060.29
  4. Step 4: Simplify right side
    790,639.37x = 467,043,349,900.69
  5. Step 5: Solve for x
    x = 467,043,349,900.69/790,639.37
  6. Step 6: Final answer
    x = 590,716.03

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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.