Home / 726,796.32-1,091,968.41-686,511.78

Finding the Fourth Proportional to 726,796.32, 1,091,968.41 and 686,511.78

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Solution

The fourth proportional to 726,796.32, 1,091,968.41 and 686,511.78 is: 1,031,443.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,796.32 : 1,091,968.41 = 686,511.78 : x
  2. Step 2: Convert to fraction form
    726,796.32/1,091,968.41 = 686,511.78/x
  3. Step 3: Cross multiply
    726,796.32x = 1,091,968.41 × 686,511.78
  4. Step 4: Simplify right side
    726,796.32x = 749,649,176,852.87
  5. Step 5: Solve for x
    x = 749,649,176,852.87/726,796.32
  6. Step 6: Final answer
    x = 1,031,443.28

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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.