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Finding the Fourth Proportional to 626,533.28, 864,222.56 and 371,704

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Solution

The fourth proportional to 626,533.28, 864,222.56 and 371,704 is: 512,718.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,533.28 : 864,222.56 = 371,704 : x
  2. Step 2: Convert to fraction form
    626,533.28/864,222.56 = 371,704/x
  3. Step 3: Cross multiply
    626,533.28x = 864,222.56 × 371,704
  4. Step 4: Simplify right side
    626,533.28x = 321,234,982,442.24
  5. Step 5: Solve for x
    x = 321,234,982,442.24/626,533.28
  6. Step 6: Final answer
    x = 512,718.15

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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.