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Finding the Fourth Proportional to 571,731.55, 789,038 and 317,164.75

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Solution

The fourth proportional to 571,731.55, 789,038 and 317,164.75 is: 437,714.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,731.55 : 789,038 = 317,164.75 : x
  2. Step 2: Convert to fraction form
    571,731.55/789,038 = 317,164.75/x
  3. Step 3: Cross multiply
    571,731.55x = 789,038 × 317,164.75
  4. Step 4: Simplify right side
    571,731.55x = 250,255,040,010.50
  5. Step 5: Solve for x
    x = 250,255,040,010.50/571,731.55
  6. Step 6: Final answer
    x = 437,714.24

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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.