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Finding the Fourth Proportional to 485,747.64, 670,330.44 and 270,887.94

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Solution

The fourth proportional to 485,747.64, 670,330.44 and 270,887.94 is: 373,824.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,747.64 : 670,330.44 = 270,887.94 : x
  2. Step 2: Convert to fraction form
    485,747.64/670,330.44 = 270,887.94/x
  3. Step 3: Cross multiply
    485,747.64x = 670,330.44 × 270,887.94
  4. Step 4: Simplify right side
    485,747.64x = 181,584,432,010.89
  5. Step 5: Solve for x
    x = 181,584,432,010.89/485,747.64
  6. Step 6: Final answer
    x = 373,824.63

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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.