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Finding the Fourth Proportional to 486,132.52, 728,698.38 and 186,533.32

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Solution

The fourth proportional to 486,132.52, 728,698.38 and 186,533.32 is: 279,607.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,132.52 : 728,698.38 = 186,533.32 : x
  2. Step 2: Convert to fraction form
    486,132.52/728,698.38 = 186,533.32/x
  3. Step 3: Cross multiply
    486,132.52x = 728,698.38 × 186,533.32
  4. Step 4: Simplify right side
    486,132.52x = 135,926,528,100.02
  5. Step 5: Solve for x
    x = 135,926,528,100.02/486,132.52
  6. Step 6: Final answer
    x = 279,607.97

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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.