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Finding the Fourth Proportional to 716,744.82, 988,696.46 and 448,006.26

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Solution

The fourth proportional to 716,744.82, 988,696.46 and 448,006.26 is: 617,991.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,744.82 : 988,696.46 = 448,006.26 : x
  2. Step 2: Convert to fraction form
    716,744.82/988,696.46 = 448,006.26/x
  3. Step 3: Cross multiply
    716,744.82x = 988,696.46 × 448,006.26
  4. Step 4: Simplify right side
    716,744.82x = 442,942,203,319.84
  5. Step 5: Solve for x
    x = 442,942,203,319.84/716,744.82
  6. Step 6: Final answer
    x = 617,991.50

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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.