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Finding the Fourth Proportional to 768,676.28, 1,060,775.06 and 424,505.93

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Solution

The fourth proportional to 768,676.28, 1,060,775.06 and 424,505.93 is: 585,819.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,676.28 : 1,060,775.06 = 424,505.93 : x
  2. Step 2: Convert to fraction form
    768,676.28/1,060,775.06 = 424,505.93/x
  3. Step 3: Cross multiply
    768,676.28x = 1,060,775.06 × 424,505.93
  4. Step 4: Simplify right side
    768,676.28x = 450,305,295,939.70
  5. Step 5: Solve for x
    x = 450,305,295,939.70/768,676.28
  6. Step 6: Final answer
    x = 585,819.17

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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.