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Finding the Fourth Proportional to 688,364.11, 949,611.36 and 446,722.48

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Solution

The fourth proportional to 688,364.11, 949,611.36 and 446,722.48 is: 616,262.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,364.11 : 949,611.36 = 446,722.48 : x
  2. Step 2: Convert to fraction form
    688,364.11/949,611.36 = 446,722.48/x
  3. Step 3: Cross multiply
    688,364.11x = 949,611.36 × 446,722.48
  4. Step 4: Simplify right side
    688,364.11x = 424,212,741,775.37
  5. Step 5: Solve for x
    x = 424,212,741,775.37/688,364.11
  6. Step 6: Final answer
    x = 616,262.14

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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.