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Finding the Fourth Proportional to 607,513.30, 910,285.80 and 518,939.80

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Solution

The fourth proportional to 607,513.30, 910,285.80 and 518,939.80 is: 777,569.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,513.30 : 910,285.80 = 518,939.80 : x
  2. Step 2: Convert to fraction form
    607,513.30/910,285.80 = 518,939.80/x
  3. Step 3: Cross multiply
    607,513.30x = 910,285.80 × 518,939.80
  4. Step 4: Simplify right side
    607,513.30x = 472,383,530,994.84
  5. Step 5: Solve for x
    x = 472,383,530,994.84/607,513.30
  6. Step 6: Final answer
    x = 777,569.04

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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.