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Finding the Fourth Proportional to 510,702.88, 703,571.19 and 355,387.16

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Solution

The fourth proportional to 510,702.88, 703,571.19 and 355,387.16 is: 489,600.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,702.88 : 703,571.19 = 355,387.16 : x
  2. Step 2: Convert to fraction form
    510,702.88/703,571.19 = 355,387.16/x
  3. Step 3: Cross multiply
    510,702.88x = 703,571.19 × 355,387.16
  4. Step 4: Simplify right side
    510,702.88x = 250,040,167,071.92
  5. Step 5: Solve for x
    x = 250,040,167,071.92/510,702.88
  6. Step 6: Final answer
    x = 489,600.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.