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Finding the Fourth Proportional to 528,651.04, 792,969.72 and 129,295.12

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Solution

The fourth proportional to 528,651.04, 792,969.72 and 129,295.12 is: 193,941.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,651.04 : 792,969.72 = 129,295.12 : x
  2. Step 2: Convert to fraction form
    528,651.04/792,969.72 = 129,295.12/x
  3. Step 3: Cross multiply
    528,651.04x = 792,969.72 × 129,295.12
  4. Step 4: Simplify right side
    528,651.04x = 102,527,115,103.77
  5. Step 5: Solve for x
    x = 102,527,115,103.77/528,651.04
  6. Step 6: Final answer
    x = 193,941.01

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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.