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Finding the Fourth Proportional to 628,066.38, 866,767.02 and 341,580.72

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Solution

The fourth proportional to 628,066.38, 866,767.02 and 341,580.72 is: 471,400.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,066.38 : 866,767.02 = 341,580.72 : x
  2. Step 2: Convert to fraction form
    628,066.38/866,767.02 = 341,580.72/x
  3. Step 3: Cross multiply
    628,066.38x = 866,767.02 × 341,580.72
  4. Step 4: Simplify right side
    628,066.38x = 296,070,902,763.85
  5. Step 5: Solve for x
    x = 296,070,902,763.85/628,066.38
  6. Step 6: Final answer
    x = 471,400.65

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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.