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Finding the Fourth Proportional to 648,459.84, 972,164.88 and 248,896.56

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Solution

The fourth proportional to 648,459.84, 972,164.88 and 248,896.56 is: 373,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,459.84 : 972,164.88 = 248,896.56 : x
  2. Step 2: Convert to fraction form
    648,459.84/972,164.88 = 248,896.56/x
  3. Step 3: Cross multiply
    648,459.84x = 972,164.88 × 248,896.56
  4. Step 4: Simplify right side
    648,459.84x = 241,968,494,384.81
  5. Step 5: Solve for x
    x = 241,968,494,384.81/648,459.84
  6. Step 6: Final answer
    x = 373,143.38

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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.