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Finding the Fourth Proportional to 618,804.78, 928,207.98 and 169,529.60

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Solution

The fourth proportional to 618,804.78, 928,207.98 and 169,529.60 is: 254,294.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,804.78 : 928,207.98 = 169,529.60 : x
  2. Step 2: Convert to fraction form
    618,804.78/928,207.98 = 169,529.60/x
  3. Step 3: Cross multiply
    618,804.78x = 928,207.98 × 169,529.60
  4. Step 4: Simplify right side
    618,804.78x = 157,358,727,566.21
  5. Step 5: Solve for x
    x = 157,358,727,566.21/618,804.78
  6. Step 6: Final answer
    x = 254,294.62

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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.