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Finding the Fourth Proportional to 489,270.40, 733,905.60 and 447,936.10

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Solution

The fourth proportional to 489,270.40, 733,905.60 and 447,936.10 is: 671,904.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,270.40 : 733,905.60 = 447,936.10 : x
  2. Step 2: Convert to fraction form
    489,270.40/733,905.60 = 447,936.10/x
  3. Step 3: Cross multiply
    489,270.40x = 733,905.60 × 447,936.10
  4. Step 4: Simplify right side
    489,270.40x = 328,742,812,232.16
  5. Step 5: Solve for x
    x = 328,742,812,232.16/489,270.40
  6. Step 6: Final answer
    x = 671,904.15

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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.