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Finding the Fourth Proportional to 648,369.84, 972,680.84 and 248,981.28

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Solution

The fourth proportional to 648,369.84, 972,680.84 and 248,981.28 is: 373,520.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,369.84 : 972,680.84 = 248,981.28 : x
  2. Step 2: Convert to fraction form
    648,369.84/972,680.84 = 248,981.28/x
  3. Step 3: Cross multiply
    648,369.84x = 972,680.84 × 248,981.28
  4. Step 4: Simplify right side
    648,369.84x = 242,179,320,574.68
  5. Step 5: Solve for x
    x = 242,179,320,574.68/648,369.84
  6. Step 6: Final answer
    x = 373,520.34

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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.