Home / 790,671.71-1,091,122.34-428,087.96

Finding the Fourth Proportional to 790,671.71, 1,091,122.34 and 428,087.96

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Solution

The fourth proportional to 790,671.71, 1,091,122.34 and 428,087.96 is: 590,758.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,671.71 : 1,091,122.34 = 428,087.96 : x
  2. Step 2: Convert to fraction form
    790,671.71/1,091,122.34 = 428,087.96/x
  3. Step 3: Cross multiply
    790,671.71x = 1,091,122.34 × 428,087.96
  4. Step 4: Simplify right side
    790,671.71x = 467,096,329,044.98
  5. Step 5: Solve for x
    x = 467,096,329,044.98/790,671.71
  6. Step 6: Final answer
    x = 590,758.88

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Double scale
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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.