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Finding the Fourth Proportional to 659,352.96, 909,912.78 and 357,546.96

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Solution

The fourth proportional to 659,352.96, 909,912.78 and 357,546.96 is: 493,417.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,352.96 : 909,912.78 = 357,546.96 : x
  2. Step 2: Convert to fraction form
    659,352.96/909,912.78 = 357,546.96/x
  3. Step 3: Cross multiply
    659,352.96x = 909,912.78 × 357,546.96
  4. Step 4: Simplify right side
    659,352.96x = 325,336,548,354.15
  5. Step 5: Solve for x
    x = 325,336,548,354.15/659,352.96
  6. Step 6: Final answer
    x = 493,417.89

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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.