Home / 790,821.52-1,091,333.52-428,245.37

Finding the Fourth Proportional to 790,821.52, 1,091,333.52 and 428,245.37

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Solution

The fourth proportional to 790,821.52, 1,091,333.52 and 428,245.37 is: 590,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,821.52 : 1,091,333.52 = 428,245.37 : x
  2. Step 2: Convert to fraction form
    790,821.52/1,091,333.52 = 428,245.37/x
  3. Step 3: Cross multiply
    790,821.52x = 1,091,333.52 × 428,245.37
  4. Step 4: Simplify right side
    790,821.52x = 467,358,527,065.80
  5. Step 5: Solve for x
    x = 467,358,527,065.80/790,821.52
  6. Step 6: Final answer
    x = 590,978.51

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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.