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Finding the Fourth Proportional to 628,034.20, 866,693.55 and 341,560.60

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Solution

The fourth proportional to 628,034.20, 866,693.55 and 341,560.60 is: 471,357.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,034.20 : 866,693.55 = 341,560.60 : x
  2. Step 2: Convert to fraction form
    628,034.20/866,693.55 = 341,560.60/x
  3. Step 3: Cross multiply
    628,034.20x = 866,693.55 × 341,560.60
  4. Step 4: Simplify right side
    628,034.20x = 296,028,368,954.13
  5. Step 5: Solve for x
    x = 296,028,368,954.13/628,034.20
  6. Step 6: Final answer
    x = 471,357.08

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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.