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Finding the Fourth Proportional to 660,059.49, 989,930.64 and 304,732.17

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Solution

The fourth proportional to 660,059.49, 989,930.64 and 304,732.17 is: 457,025.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,059.49 : 989,930.64 = 304,732.17 : x
  2. Step 2: Convert to fraction form
    660,059.49/989,930.64 = 304,732.17/x
  3. Step 3: Cross multiply
    660,059.49x = 989,930.64 × 304,732.17
  4. Step 4: Simplify right side
    660,059.49x = 301,663,712,076.69
  5. Step 5: Solve for x
    x = 301,663,712,076.69/660,059.49
  6. Step 6: Final answer
    x = 457,025.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.