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Finding the Fourth Proportional to 577,816.60, 865,688.10 and 494,872.60

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Solution

The fourth proportional to 577,816.60, 865,688.10 and 494,872.60 is: 741,420.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,816.60 : 865,688.10 = 494,872.60 : x
  2. Step 2: Convert to fraction form
    577,816.60/865,688.10 = 494,872.60/x
  3. Step 3: Cross multiply
    577,816.60x = 865,688.10 × 494,872.60
  4. Step 4: Simplify right side
    577,816.60x = 428,405,320,836.06
  5. Step 5: Solve for x
    x = 428,405,320,836.06/577,816.60
  6. Step 6: Final answer
    x = 741,420.93

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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.