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Finding the Fourth Proportional to 438,602.67, 605,306.85 and 348,700.56

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Solution

The fourth proportional to 438,602.67, 605,306.85 and 348,700.56 is: 481,234.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,602.67 : 605,306.85 = 348,700.56 : x
  2. Step 2: Convert to fraction form
    438,602.67/605,306.85 = 348,700.56/x
  3. Step 3: Cross multiply
    438,602.67x = 605,306.85 × 348,700.56
  4. Step 4: Simplify right side
    438,602.67x = 211,070,837,566.84
  5. Step 5: Solve for x
    x = 211,070,837,566.84/438,602.67
  6. Step 6: Final answer
    x = 481,234.73

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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.