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Finding the Fourth Proportional to 605,110.20, 907,665.30 and 510,631.80

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Solution

The fourth proportional to 605,110.20, 907,665.30 and 510,631.80 is: 765,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,110.20 : 907,665.30 = 510,631.80 : x
  2. Step 2: Convert to fraction form
    605,110.20/907,665.30 = 510,631.80/x
  3. Step 3: Cross multiply
    605,110.20x = 907,665.30 × 510,631.80
  4. Step 4: Simplify right side
    605,110.20x = 463,482,765,936.54
  5. Step 5: Solve for x
    x = 463,482,765,936.54/605,110.20
  6. Step 6: Final answer
    x = 765,947.70

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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.