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Finding the Fourth Proportional to 605,893.47, 908,741.71 and 286,044.72

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Solution

The fourth proportional to 605,893.47, 908,741.71 and 286,044.72 is: 429,020.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,893.47 : 908,741.71 = 286,044.72 : x
  2. Step 2: Convert to fraction form
    605,893.47/908,741.71 = 286,044.72/x
  3. Step 3: Cross multiply
    605,893.47x = 908,741.71 × 286,044.72
  4. Step 4: Simplify right side
    605,893.47x = 259,940,767,989.27
  5. Step 5: Solve for x
    x = 259,940,767,989.27/605,893.47
  6. Step 6: Final answer
    x = 429,020.58

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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.