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Finding the Fourth Proportional to 894,699.81, 1,341,883.02 and 287,498.66

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Solution

The fourth proportional to 894,699.81, 1,341,883.02 and 287,498.66 is: 431,194.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,699.81 : 1,341,883.02 = 287,498.66 : x
  2. Step 2: Convert to fraction form
    894,699.81/1,341,883.02 = 287,498.66/x
  3. Step 3: Cross multiply
    894,699.81x = 1,341,883.02 × 287,498.66
  4. Step 4: Simplify right side
    894,699.81x = 385,789,570,126.75
  5. Step 5: Solve for x
    x = 385,789,570,126.75/894,699.81
  6. Step 6: Final answer
    x = 431,194.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.