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Finding the Fourth Proportional to 573,375, 860,243.94 and 257,859.48

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Solution

The fourth proportional to 573,375, 860,243.94 and 257,859.48 is: 386,870.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,375 : 860,243.94 = 257,859.48 : x
  2. Step 2: Convert to fraction form
    573,375/860,243.94 = 257,859.48/x
  3. Step 3: Cross multiply
    573,375x = 860,243.94 × 257,859.48
  4. Step 4: Simplify right side
    573,375x = 221,822,055,041.55
  5. Step 5: Solve for x
    x = 221,822,055,041.55/573,375
  6. Step 6: Final answer
    x = 386,870.82

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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.