Home / 790,836.70-1,091,355.23-428,260.96

Finding the Fourth Proportional to 790,836.70, 1,091,355.23 and 428,260.96

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Solution

The fourth proportional to 790,836.70, 1,091,355.23 and 428,260.96 is: 591,000.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,836.70 : 1,091,355.23 = 428,260.96 : x
  2. Step 2: Convert to fraction form
    790,836.70/1,091,355.23 = 428,260.96/x
  3. Step 3: Cross multiply
    790,836.70x = 1,091,355.23 × 428,260.96
  4. Step 4: Simplify right side
    790,836.70x = 467,384,838,500.82
  5. Step 5: Solve for x
    x = 467,384,838,500.82/790,836.70
  6. Step 6: Final answer
    x = 591,000.44

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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.