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Finding the Fourth Proportional to 634,660, 875,908.28 and 362,739.36

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Solution

The fourth proportional to 634,660, 875,908.28 and 362,739.36 is: 500,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,660 : 875,908.28 = 362,739.36 : x
  2. Step 2: Convert to fraction form
    634,660/875,908.28 = 362,739.36/x
  3. Step 3: Cross multiply
    634,660x = 875,908.28 × 362,739.36
  4. Step 4: Simplify right side
    634,660x = 317,726,408,905.90
  5. Step 5: Solve for x
    x = 317,726,408,905.90/634,660
  6. Step 6: Final answer
    x = 500,624.60

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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.