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Finding the Fourth Proportional to 577,838.60, 865,721.10 and 494,894.60

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Solution

The fourth proportional to 577,838.60, 865,721.10 and 494,894.60 is: 741,453.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,838.60 : 865,721.10 = 494,894.60 : x
  2. Step 2: Convert to fraction form
    577,838.60/865,721.10 = 494,894.60/x
  3. Step 3: Cross multiply
    577,838.60x = 865,721.10 × 494,894.60
  4. Step 4: Simplify right side
    577,838.60x = 428,440,697,496.06
  5. Step 5: Solve for x
    x = 428,440,697,496.06/577,838.60
  6. Step 6: Final answer
    x = 741,453.92

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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.