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Finding the Fourth Proportional to 508,506, 701,737.74 and 279,064.62

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Solution

The fourth proportional to 508,506, 701,737.74 and 279,064.62 is: 385,108.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,506 : 701,737.74 = 279,064.62 : x
  2. Step 2: Convert to fraction form
    508,506/701,737.74 = 279,064.62/x
  3. Step 3: Cross multiply
    508,506x = 701,737.74 × 279,064.62
  4. Step 4: Simplify right side
    508,506x = 195,830,175,752.76
  5. Step 5: Solve for x
    x = 195,830,175,752.76/508,506
  6. Step 6: Final answer
    x = 385,108.88

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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.