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Finding the Fourth Proportional to 493,980.52, 740,893.20 and 156,976.78

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Solution

The fourth proportional to 493,980.52, 740,893.20 and 156,976.78 is: 235,440.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,980.52 : 740,893.20 = 156,976.78 : x
  2. Step 2: Convert to fraction form
    493,980.52/740,893.20 = 156,976.78/x
  3. Step 3: Cross multiply
    493,980.52x = 740,893.20 × 156,976.78
  4. Step 4: Simplify right side
    493,980.52x = 116,303,028,859.90
  5. Step 5: Solve for x
    x = 116,303,028,859.90/493,980.52
  6. Step 6: Final answer
    x = 235,440.52

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1.5x scale

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.