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Finding the Fourth Proportional to 448,948, 619,549.05 and 247,744

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Solution

The fourth proportional to 448,948, 619,549.05 and 247,744 is: 341,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,948 : 619,549.05 = 247,744 : x
  2. Step 2: Convert to fraction form
    448,948/619,549.05 = 247,744/x
  3. Step 3: Cross multiply
    448,948x = 619,549.05 × 247,744
  4. Step 4: Simplify right side
    448,948x = 153,489,559,843.20
  5. Step 5: Solve for x
    x = 153,489,559,843.20/448,948
  6. Step 6: Final answer
    x = 341,887.17

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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.