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Finding the Fourth Proportional to 628,051.72, 866,703 and 341,565.64

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Solution

The fourth proportional to 628,051.72, 866,703 and 341,565.64 is: 471,356.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,051.72 : 866,703 = 341,565.64 : x
  2. Step 2: Convert to fraction form
    628,051.72/866,703 = 341,565.64/x
  3. Step 3: Cross multiply
    628,051.72x = 866,703 × 341,565.64
  4. Step 4: Simplify right side
    628,051.72x = 296,035,964,884.92
  5. Step 5: Solve for x
    x = 296,035,964,884.92/628,051.72
  6. Step 6: Final answer
    x = 471,356.03

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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.