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Finding the Fourth Proportional to 535,087.17, 738,420.30 and 308,732.67

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Solution

The fourth proportional to 535,087.17, 738,420.30 and 308,732.67 is: 426,051.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,087.17 : 738,420.30 = 308,732.67 : x
  2. Step 2: Convert to fraction form
    535,087.17/738,420.30 = 308,732.67/x
  3. Step 3: Cross multiply
    535,087.17x = 738,420.30 × 308,732.67
  4. Step 4: Simplify right side
    535,087.17x = 227,974,470,801.20
  5. Step 5: Solve for x
    x = 227,974,470,801.20/535,087.17
  6. Step 6: Final answer
    x = 426,051.09

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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.