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Finding the Fourth Proportional to 499,044.56, 688,698.48 and 272,704.64

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Solution

The fourth proportional to 499,044.56, 688,698.48 and 272,704.64 is: 376,341.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,044.56 : 688,698.48 = 272,704.64 : x
  2. Step 2: Convert to fraction form
    499,044.56/688,698.48 = 272,704.64/x
  3. Step 3: Cross multiply
    499,044.56x = 688,698.48 × 272,704.64
  4. Step 4: Simplify right side
    499,044.56x = 187,811,271,056.95
  5. Step 5: Solve for x
    x = 187,811,271,056.95/499,044.56
  6. Step 6: Final answer
    x = 376,341.69

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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.