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Finding the Fourth Proportional to 499,044, 688,697.74 and 272,704.08

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Solution

The fourth proportional to 499,044, 688,697.74 and 272,704.08 is: 376,340.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,044 : 688,697.74 = 272,704.08 : x
  2. Step 2: Convert to fraction form
    499,044/688,697.74 = 272,704.08/x
  3. Step 3: Cross multiply
    499,044x = 688,697.74 × 272,704.08
  4. Step 4: Simplify right side
    499,044x = 187,810,683,584.78
  5. Step 5: Solve for x
    x = 187,810,683,584.78/499,044
  6. Step 6: Final answer
    x = 376,340.93

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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.