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Finding the Fourth Proportional to 605,048.40, 907,572.60 and 339,627.60

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Solution

The fourth proportional to 605,048.40, 907,572.60 and 339,627.60 is: 509,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,048.40 : 907,572.60 = 339,627.60 : x
  2. Step 2: Convert to fraction form
    605,048.40/907,572.60 = 339,627.60/x
  3. Step 3: Cross multiply
    605,048.40x = 907,572.60 × 339,627.60
  4. Step 4: Simplify right side
    605,048.40x = 308,236,703,963.76
  5. Step 5: Solve for x
    x = 308,236,703,963.76/605,048.40
  6. Step 6: Final answer
    x = 509,441.40

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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.