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Finding the Fourth Proportional to 328,953.60, 493,430.40 and 325,843.20

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Solution

The fourth proportional to 328,953.60, 493,430.40 and 325,843.20 is: 488,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,953.60 : 493,430.40 = 325,843.20 : x
  2. Step 2: Convert to fraction form
    328,953.60/493,430.40 = 325,843.20/x
  3. Step 3: Cross multiply
    328,953.60x = 493,430.40 × 325,843.20
  4. Step 4: Simplify right side
    328,953.60x = 160,780,940,513.28
  5. Step 5: Solve for x
    x = 160,780,940,513.28/328,953.60
  6. Step 6: Final answer
    x = 488,764.80

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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.