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Finding the Fourth Proportional to 578,969.96, 868,509.98 and 179,615.08

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Solution

The fourth proportional to 578,969.96, 868,509.98 and 179,615.08 is: 269,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,969.96 : 868,509.98 = 179,615.08 : x
  2. Step 2: Convert to fraction form
    578,969.96/868,509.98 = 179,615.08/x
  3. Step 3: Cross multiply
    578,969.96x = 868,509.98 × 179,615.08
  4. Step 4: Simplify right side
    578,969.96x = 155,997,489,538.50
  5. Step 5: Solve for x
    x = 155,997,489,538.50/578,969.96
  6. Step 6: Final answer
    x = 269,439.70

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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.