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Finding the Fourth Proportional to 562,818.98, 776,682.50 and 308,170.20

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Solution

The fourth proportional to 562,818.98, 776,682.50 and 308,170.20 is: 425,270.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,818.98 : 776,682.50 = 308,170.20 : x
  2. Step 2: Convert to fraction form
    562,818.98/776,682.50 = 308,170.20/x
  3. Step 3: Cross multiply
    562,818.98x = 776,682.50 × 308,170.20
  4. Step 4: Simplify right side
    562,818.98x = 239,350,401,361.50
  5. Step 5: Solve for x
    x = 239,350,401,361.50/562,818.98
  6. Step 6: Final answer
    x = 425,270.66

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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.